Acrylic Portrait Drawings and Watercolors
to
20
74
27
15
10
6
Overall Width
to
Overall Height
to
1
46
85
2
4
35
3
35
19
7
5
3
2
1
1
78
45
8
82
57
54
44
28
21
16
10
10
10
9
9
8
8
8
7
6
6
5
5
61,398
1,555
1,452
1,277
1,170
9
6
6
2
2
33
13
87
37
Medium: Acrylic
SKULL DOG
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
AcrIcrylic on Wotercolor Paper.
The magic flow reality...
The painting will be shipped directly from Thailand – safely and promptly."
Category
2010s Pop Art Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
MR DOG
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
Acrylic on watercolor paper,
Framed.
The painting will be shipped directly from Thailand – safely and promptly.
Category
2010s Pop Art Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
LONG WALKS
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
Acrylic on Watercolor Paper.
The magic flow reality...
The painting will be shipped directly from Thailand – safely and promptly."
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Permanent Marker, Acrylic
ABSTRACT FACES
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
Acrylic markers, ink on cartboard paper.
Unframed.
Ships securely and well protected from Spain.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
WITH CATS
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
Acrylic markers, ink on paper.
Unframed.
The painting will be shipped directly from Thailand – safely and promptly."
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
DREAM TRANSFORMATION
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
AcrIcrylic on Wotercolor Paper.
The magic flow reality...
The painting will be shipped directly from Thailand – safely and promptly."
Category
2010s Pop Art Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
TIME TRAVEL
Located in CÓRDOBA, ES
Original art by Daria Kusto.
acrIcrylic on wotercolor paper.
The magic flow reality...
Shipped free
well protected
unframed.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Watercolor, Acrylic, Permanent Marker
ADVENTURE
Located in CÓRDOBA, ES
Original art by Daria Kusto.
acrIcrylic on wotercolor paper.
The magic flow reality...
Shipped free
well protected
unframed.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
POETRY OF LOVE
Located in CÓRDOBA, ES
Original art by Daria Kusto.
acrIcrylic on wotercolor paper.
The magic flow reality...
Shipped free
well protected
unframed.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Watercolor, Permanent Marker
FLY
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
Acrylic, markers, ink on watercolor paper.
Unframed.
Ships securely and well protected from Spain.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
Original-Meeting Van Gogh-Study Master Series-British Awarded Artist-Ink Drawing
Located in London, GB
This drawing studied of Van Gogh's self-portrait at his Solo exhibition " Poets and Lovers" in National Gallery, London, 2024.
Shizico Yi learned her craft in drawings from old mast...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Archival Paper, Acrylic, Gouache, Charcoal, Ink
MERMAID SONGS
Located in CÓRDOBA, ES
Original art by Daria Kusto.
acrIcrylic on wotercolor paper.
The magic flow reality...
Shipped free
well protected
unframed.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Watercolor, Permanent Marker
MAGIC CAT
Located in CÓRDOBA, ES
Original art by Daria Kusto.
acrIcrylic on wotercolor paper.
The magic flow reality...
Shipped free
well protected
unframed.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Watercolor, Permanent Marker
“Listen to Time”
Located in Zofingen, AG
A monochrome minimalist portrait in a restrained palette. The white face, resembling a mask, is immersed in music, dissolving into time. Simple yet expressive brushstrokes create a s...
Category
2010s Abstract Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Cardboard
HAPPY TOGETHER
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
Acrylic, ink on watercolor paper.
Unframed.
Ships securely and well protected from Spain.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
NIGHT ADVENTURE
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
acrIcrylic markers, ink on paper
The magic flow reality...
Shipped unframed.
Well protected, from Spain.
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Permanent Marker, Acrylic
Angela (Small, Light-Blue Portrait of Woman with Daisies by Ransome)
Located in Hudson, NY
Portrait of woman on a light blue pattern dotted with white daisies
"Angela" by Ransome
2023
graphite, acrylic and collage on panel
8 x 8 x 2 inches, unframed
Piece can be hung attra...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Graphite, Paper
Klimt Tattoo, disrupted realism charcoal acrylic on Strathmore paper red, tan
Located in Brooklyn, NY
Charcoal, acrylic mixed media
As a feminist artist, Audrey Anastasi's first commitment is to painting other women, the human face, and figure. Whether working with figurative descri...
Category
2010s Neo-Expressionist Acrylic Portrait Drawings and Watercolors
Materials
Charcoal, Acrylic, Archival Paper
Cholly (Portrait of Man in Mixed Media and Collage with Floral Theme by Ransome)
Located in Hudson, NY
"Cholly" — small portrait of man in mixed media and collage with floral theme in pink, yellow and green
2023
graphite, acrylic and collage on panel
8 x 8 x 2 inches, unframed
Piece c...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Paper, Acrylic, Graphite
Becca (Small Grey Mixed-Media Portrait of Woman w/ White Polka Dots by Ransome)
Located in Hudson, NY
Grey portrait of woman with white polka dots and a swath of green collaged media
"Becca" by Ransome
2023
graphite, acrylic and collage on panel
8 x 8 x 2 inches, unframed
Piece can b...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Paper, Acrylic, Graphite
Nymph of Eden
Located in Zofingen, AG
In "Nymph of Eden" the artist continues her exploration of human sexuality and identity through mythological images. Inspired by ancient Greek mythology, where nymphs symbolized nat...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
"Vampire" (2024) By Katie Mansfield, Original Embellished Print
Located in Denver, CO
"Vampire" (2024) by Katie Mansfield is an original handmade print, embellished with metallic acrylic on paper. This piece depicts a woman who is shopping at a supermarket for vampire...
Category
21st Century and Contemporary Impressionist Acrylic Portrait Drawings and Watercolors
Materials
Paper, Acrylic
Untitled (Sunset Tower Hotel)
By Ed Templeton
Located in New York, NY
Listing includes framing with UV plexi, free shipping and a 14 day return policy.
Ed Templeton
Untitled (Sunset Tower Hotel), 2019
Image size: 11 ...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Ballpoint Pen, Pencil, Color Pencil
Evening tea
Located in Zofingen, AG
Evening Tea" is a painting permeated with soft light and the aroma of a summer garden. Lush flowers in a vase seem to whisper stories of quiet evenings, and a cup of tea standing ne...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
Warm Evening with Tea
Located in Zofingen, AG
Warm Evening with Tea" is a painting permeated with soft light and the aroma of a summer garden. Lush flowers in a vase seem to whisper stories of quiet evenings, and a cup of tea s...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
Pierpaolo Piccioli for Moncler, Watercolor fashion illustration on paper.
Located in Miami Beach, FL
The artist has covered New York collections for over 16 years and has interviewed, as a journalist, several fashion designers and personalities for different publications. He loves t...
Category
21st Century and Contemporary Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Paper, Ink, Acrylic
"Correct" - Figurative drawing on paper with text
Located in East Quogue, NY
Original mixed media work on paper by Adam Baranello.
Mixed media, acrylic, spray paint on canvas.
Size 17 x 14 in.
Offered unframed. Ships rolled
Multidisciplinary artist Adam Ba...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Oil Pastel, Ink, Mixed Media, Spray Paint, Acrylic
"Skeletype Grape, " Acrylic & Pastel on Grocery Bag signed by Reginald K. Gee
Located in Milwaukee, WI
"Skeletype Grape" is an original acrylic painting and pastel on a grocery bag by Reginald K. Gee. The artist signed the piece lower left. This artwork features an abstract portrait o...
Category
1990s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Pastel, Found Objects, Acrylic
Boy in Red, Modern Acrylic Painting and Collage on paper by Francois Paris
Located in Long Island City, NY
Francois Paris - Boy in Red, Year: circa 1965, Medium: Acrylic and Collage on paper, signed top right, Image Size: 21 x 15 inches, Size: 24 x 18 in. (60.96 x 45.72 cm)
Category
1960s Modern Acrylic Portrait Drawings and Watercolors
Materials
Mixed Media, Acrylic
ES II - Birds Eye View of New York City, Original Acrylic & Ink on Paper, Framed
Located in Chicago, IL
Patrick Vale
ES II
acrylic and ink on paper
30h x 22w in
76.20h x 55.88w cm
PKV019
Abstractions, such as color, to me or or mood, don't really enter the ...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Ink, Acrylic, Archival Paper
'Women And Brown Cat' Acrylic And Ink Original Drawing On Paper By Devie
Located in Carmel, CA
Inspired by the theatre world, Devi had retained her own unique drawing strokes. Her works reflect an approachable other-worldliness. She paints a story to be told and answered.
The...
Category
21st Century and Contemporary Modern Acrylic Portrait Drawings and Watercolors
Materials
Ink, Acrylic, Handmade Paper
Otredad [Triptych] (1/5)
Located in San Francisco, CA
This is a triptych: there are three individually framed acrylic on canvas panels in this artwork. Each framed panel is 35.4 x 23.6 inches.
Rocca Luis César (b. 1986, Guadalajara, Me...
Category
21st Century and Contemporary Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
![Otredad [Triptych] (1/5)](https://a.1stdibscdn.com/rocca-luis-csar-paintings-otredad-triptych-1-5-for-sale/a_27562/1723573020719/otredad_master.jpeg?width=240 "luis rocca")
1950's French Modernist / Cubist Drawing, Red Portrait of Lady
Located in Cirencester, Gloucestershire
French Landscape
by Bernard Labbe (French mid-20th century)
Original watercolour/ gouache painting on artist paper, unframed.
Size: 11.5 x 9.5 inches
Condition: very good and ready t...
Category
1950s Acrylic Portrait Drawings and Watercolors
Materials
Acrylic
"Demon" (FRAMED) Painting 33" x 27" inch by Antonio Pelayo
Located in Culver City, CA
"Demon" (FRAMED) Painting 33" x 27" inch by Antonio Pelayo
Medium: "Acrylic Ink & Paint on Animation Acetate
Artist Antonio Pelayo, born in Glendale, California, and yet raised fo...
Category
21st Century and Contemporary Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Ink, Acrylic
"Festive Mode, " Oil Pastel & Acrylic on Grocery Bag signed by Reginald K. Gee
Located in Milwaukee, WI
"Festive Mode" is an original oil pastel and acrylic painting by Reginald K. Gee. The artist signed the piece lower right. This is a self portrait of the artist in glasses.
13 1/2"...
Category
1990s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Oil Pastel, Found Objects, Acrylic
Untitled (Chateau Marmont)
By Ed Templeton
Located in New York, NY
Ed Templeton grew up and lives in Huntington Beach. While Templeton originally gained fame as a professional skateboarder, he is now recognized as a semin...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Acrylic
CAT & MAGIC OF LOVE
Located in CÓRDOBA, ES
Original artwork by Daria Kusto.
AcrIcrylic on Wotercolor Paper.
The magic flow reality...
The painting will be shipped directly from Thailand – safely and promptly."
Category
2010s Pop Art Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Permanent Marker
Secret visit
Located in Zofingen, AG
"Secret Visit" from the "Garden of Delights" series is an enchanting painting that portrays a girl surrounded by peacocks in a mysterious garden. This artwork symbolizes the beauty ...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
1950's French Modernist/ Cubist Drawing - Portrait Of Lady
Located in Cirencester, Gloucestershire
French Landscape
by Bernard Labbe (French mid 20th century)
original watercolour/ gouache painting on artist paper, unframed
size: 12 x 9 inches
condition: very good and ready to be ...
Category
1950s Acrylic Portrait Drawings and Watercolors
Materials
Acrylic
"Baby" - Original Acrylic Painting of Woman and Deer by Mary Carroll
By Mary Carroll
Located in Denver, CO
Mary Carroll's "Baby" (2024) is a deeply evocative acrylic painting, measuring 24 x 18 inches, ready to hang even without a frame. This poignant artwork captures a somber yet tender ...
Category
2010s Realist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Panel
"Whisper of a Blooming Dream"
Located in Zofingen, AG
“Whisper of a Blooming Dream” is a work of art that reveals the subtle facets of sensuality, where passion is combined with tenderness.
In the center of the picture is a woman gracef...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
Untitled (Hotel Bel-Air)
By Ed Templeton
Located in New York, NY
Ed Templeton grew up and lives in Huntington Beach. While Templeton originally gained fame as a professional skateboarder, he is now recognized as a semin...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Acrylic
"King Owl" - Bird graffiti art drawing on paper with text
Located in East Quogue, NY
Original mixed media work on paper by Adam Baranello.
Mixed media, acrylic, spray paint on canvas.
Size 17 x 14 in.
Offered unframed. Ships rolled
Multidisciplinary artist Adam Ba...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Oil Pastel, Ink, Mixed Media, Spray Paint, Acrylic
Evening Temptation
Located in Zofingen, AG
Evening Temptation" is a painting that captures the sensual notes of a cozy evening. At the heart of the composition lies a vase with flowers, sculpted in the form of a woman's body...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
"A Cozy Conversation Without Words"
Located in Zofingen, AG
The painting evokes a quiet, cozy atmosphere, where a young woman enjoys the peace of a home evening in the company of her beloved cat. Her gaze, turned to the side, seems to catch i...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
"Dragonfly Mother" (2023) By Babs Webb and Timothy Von Rueden
Located in Denver, CO
"Dragonfly Mother" is a beautiful collaboration between fantasy masters Babs Webb and Timothy Von Rueden, done with graphite on mixed media paper, and measuring at 14 x 11 in. in its...
Category
2010s Surrealist Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Archival Paper, Graphite
Sweet morning with a cup of coffee
Located in VÉNISSIEUX, FR
This contemporary colorful painting "Sweet morning with a cup of coffee" done in an impressionist style with a modern touch of brut expressionist art makes part of my "Women" serie...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Paper, Acrylic
$400 Sale Price
30% Off
Still Life with Flowers and Fruits
Located in Zofingen, AG
"Still Life with Flowers and Fruits" is a vibrant and dynamic painting that showcases a harmonious blend of flowers, fruits, and tableware. Created with a rich, expressive palette, ...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
Contemplation and Purring
Located in Zofingen, AG
"Contemplation and Purring" captures a serene moment of harmony between a relaxed young woman and two playful cats. The woman, in gentle repose, embodies tranquility and introspecti...
Category
2010s Modern Acrylic Portrait Drawings and Watercolors
Materials
Canvas, Acrylic
"Jade", Figurative, Portrait, Acrylic, Chalk Pastel, Wax Pastel
By Chambers Austelle
Located in Philadelphia, PA
This figurative portrait drawing titled "Jade" is an original artwork by Chambers Austelle made of acrylic, chalk pastel, wax pastel. This piece measures 12"h x 12"w.
Chambers Austelle is a contemporary figurative painter and educator living and working in Charleston, SC. Austelle is best known for her compositions of vivid color and female subjects. The isolated environments challenge the viewer to question the way beauty and women are perceived in our culture.
Austelle’s work has been exhibited nationally and exists in many private collections. She was awarded Best in Show at The City Gallery for “Piccolo Spoleto’s 2016 Juried Exhibition”, as well as Charlie Magazine’s “50 Most Progressive”. Most recently, she was the 2018 recipient of St. Thomas’ Artist...
Category
21st Century and Contemporary Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Chalk, Oil Pastel, Pastel, Acrylic
Joyful Modern British portrait of famed comedian Victoria Wood by Ewart Johns
Located in Petworth, West Sussex
A bright and engaging portrait of the famed comedian Victoria Wood (1953 - 2016). She wears a vibrant yellow jersey with a vivid blue stripe running across it. In the background are ...
Category
20th Century Modern Acrylic Portrait Drawings and Watercolors
Materials
Pastel, Acrylic
Untitled 6 - Series Final Fantasy, Minutiae Contemporary Figurative Painting
Located in Salzburg, AT
Magdalena Peszkowska born in 1980 in Gdańsk, Poland. Studied in Department of Painting at Academy of Fine Arts in Gdańsk (1999-2004). Diploma with special recognition in painting in 2004.
The cycle of ‘Final Fantasy...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Acrylic, Cardboard
Untitled (The Beverly Hills Hotel), 2019
By Ed Templeton
Located in New York, NY
Listing includes framing with UV plexi, free shipping in the continental US, and a 14-day return policy.
Ed Templeton
Untitled (The Beverly Hills Hotel...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Acrylic
Untitled (Sunset Tower Hotel), 2019
By Ed Templeton
Located in New York, NY
Framing included in listing, free shipping in the US, 14-day return policy.
Ed Templeton
Untitled (Sunset Tower Hotel), 2019
11 x 8.5 inches
Acryli...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Acrylic
Mars, 1966 Mixed Media by Irene Rice Pereira
Located in Long Island City, NY
Mars
Irene Rice Pereira, American (1902-1971)
Creation Date: 1966
Acrylic and pastel on rice paper, signed, dated, and titled in pastel
Size: 39 x 24.75 in. (99.06 x 62.87 cm)
Category
1960s Modern Acrylic Portrait Drawings and Watercolors
Materials
Pastel, Acrylic
Untitled (The Beverly Hills Hotel)
By Ed Templeton
Located in New York, NY
Ed Templeton grew up and lives in Huntington Beach. While Templeton originally gained fame as a professional skateboarder, he is now recognized as a semin...
Category
2010s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Acrylic
Money Is The Drug Graphic Drawing by Bernard Nacion
Located in New York, NY
Bernard Nacion
Untitled (Money Is The Drug), Late 20th Century
Acrylic on artist board
15 x 13 in.
A Surrealist representation, this piece shows a syri...
Category
Late 20th Century Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Board, Acrylic
Sans titre
Located in PARIS, FR
Oil and acrylic on paper
original work
circa 1960
H 74,5 x 56 x 3 cm (framed)
Category
1960s Abstract Geometric Acrylic Portrait Drawings and Watercolors
Materials
Oil, Acrylic
Carnegie International
By Jack Balas
Located in New York, NY
Acrylic and watercolor on paper
Signed in black ink, l.c.
This artwork is offered by ClampArt, located in New York City.
Price includes framing.
Jack Balas...
Category
Early 2000s Contemporary Acrylic Portrait Drawings and Watercolors
Materials
Paper, Watercolor, Acrylic
Dust Jacket (#1199)
By Jack Balas
Located in New York, NY
Watercolor, ink, and acrylic on paper
Signed in black ink, l.r.
Also signed and dated in blue ink, verso
This artwork is offered by ClampArt, located in New York City.
Price includes framing.
Jack...
Category
2010s Other Art Style Acrylic Portrait Drawings and Watercolors
Materials
Paper, Ink, Acrylic, Watercolor
Acrylic portrait drawings and watercolors for sale on 1stDibs.
Find a wide variety of authentic Acrylic portrait drawings and watercolors available on 1stDibs. While artists have worked in this medium across a range of time periods, art made with this material during the 21st Century is especially popular. If you’re looking to add portrait drawings and watercolors created with this material to introduce a provocative pop of color and texture to an otherwise neutral space in your home, the works available on 1stDibs include elements of blue and other colors. There are many well-known artists whose body of work includes ceramic sculptures. Popular artists on 1stDibs associated with pieces like this include Devie Elzafon, Howard Tangye, Caroline Veith, and Ed Templeton. Frequently made by artists working in the Contemporary, Modern, all of these pieces for sale are unique and many will draw the attention of guests in your home. Not every interior allows for large Acrylic portrait drawings and watercolors, so small editions measuring 0.1 inches across are also available Prices for portrait drawings and watercolors made by famous or emerging artists can differ depending on medium, time period and other attributes. On 1stDibs, the price for these items starts at $49 and tops out at $448,500, while the average work can sell for $628.
Recently Viewed
View AllMore Ways To Browse
Donald Sultan Blue Flowers
E Martin Hennings
Ed Booth
Edward Seago Watercolour
El Tovar
Eugene Maziarz
Fire Island Pines
Flying Ducks Paintings
Foll Art
Frank Archer
General Dynamics Vintage Poster
Jean Francois Debongnie
Laguna B Glass
Mill Wheel
Russell Young Bardot
Saint Jean Cap Ferrat
Salcombe Paintings
Salvador Dali Bull