Egon Schiele / Wilted Sunflowers (Autumn Sun II), 1914 / Oil on canvas / 100 x 120.5 cm / Private Collection, courtesy Eykyn Maclean

Egon Schiele / Lovers, 1918 (unfinished) / Oil on canvas / 155 x 210 cm / Leopold, Private Collection

Egon Schiele / Moa, 1911 / Gouache, watercolour and pencil on paper / 48 x 31 cm / Private Collection, London / Picture: © Mathias Kessler, 2017

Egon Schiele / Reclining Nude Girl in Striped Smock, 1911 / Pencil and watercolour on paper / 44.3 x 30.6 cm / Private Collection. Courtesy Kunsthandel / Giese & Schweiger, Vienna

Egon Schiele / Seated Semi-Nude with Hat and Purple Stockings (Gerti), 1910 / Black crayon, gouache and watercolour on paper / 44.9 × 31.7 cm / Private Collection. Courtesy W&K - Wienerroither & Kohlbacher

Egon Schiele / Standing Female Nude with Blue Cloth, 1914 / Opaque colour, watercolour, graphite on vellum paper / 48.3 x 32.2 cm / Germanisches Nationalmuseum, Nürnberg

Egon Schiele / Self-Portrait, Head, 1910 / Gouache, watercolour, and charcoal on paper / 42.6 x 29.6 cm / Collection of Ömer Koç / Picture: © Hadiye Cangókçe

Egon Schiele / Self-Portrait with Chinese Lantern Plant, 1912 / Oil and opaque colour on wood / 32.2 x 39.8 cm / Leopold Museum, Vienna / Picture: © Fotografie Leopold Museum, Vienna

Egon Schiele / Self-Portrait with Peacock Waistcoat, Standing, 1911 / Gouache, watercolour, and black crayon on paper, mounted on cardboard / 51.5 x 34.5 cm / Collection of Ernst Ploil, Vienna

Jean-Michel Basquiat / Anthony Clarke, 1985 / Acrylic, oilstick and collage on wood / 244 x 139 cm / Private Collection, London / © Estate of Jean-Michel Basquiat. Licensed by Artestar, New York.

Jean-Michel Basquiat / Dos Cabezas, 1982 / Acrylic and oilstick on canvas mounted on tied wood supports / 152.4 x 152.4 x 2.54 cm / Private Collection © Estate of Jean-Michel Basquiat. Licensed by Artestar, New York. / Picture: © Robert McKeever

Jean-Michel Basquiat / Grillo, 1984 / Oil, acrylic, oilstick, collage and nails on wood / 243.8 x 537.2 x 47 cm / Fondation Louis Vuitton © Estate of Jean-Michel Basquiat. Licensed by Artestar, New York. / Picture: © Fondation Louis Vuitton / Marc Domage

Jean-Michel Basquiat / Irony of Negro Policeman, 1981 / Acrylic, oilstick and spray paint on wood / 183 x 122 cm / AMA Collection © Estate of Jean-Michel Basquiat. / Licensed by Artestar, New York.

Jean-Michel Basquiat / Pez Dispenser, 1984 / Acrylic and oilstick on canvas / 183 x 122 cm / Private Collection. Courtesy Galerie Enrico Navarra © Estate of Jean-Michel Basquiat. / Licensed by Artestar, New York. / Picture: © Tutti-image. Bertrand Huet

Jean-Michel Basquiat / Untitled, 1982 / Acrylic and oilstick on wood / 182.8 x 121.9 cm / Private Collection © Estate of Jean-Michel Basquiat. / Licensed by Artestar, New York.

Jean-Michel Basquiat / Untitled, 1981 / Acrylic and oilstick on canvas / 205.7 x 175.9 cm / The Eli and Edythe L. Broad Collection © Estate of Jean-Michel Basquiat. / Licensed by Artestar, New York. / Picture: Courtesy of Douglas M. Parker Studio, Los Ang

Jean-Michel Basquiat / Untitled, 1982 / Acrylic, spray paint and oilstick on canvas / 183.2 x 173 cm / Yusaku Maezawa Collection, Chiba, Japan / Photograph Courtesy of Sotheby’s, Inc. © 2018

Jean-Michel Basquiat / Untitled (Boxer), 1982 / Acrylic and oilstick on linen / 193 x 239 cm / Private Collection © Estate of Jean-Michel Basquiat. / Licensed by Artestar, New York.