David Hockney English painter, printmaker, photographer and stage designer, David Hockney is one of the most popular British artists of the 20th century. http://www.hockneypictures.com/ Robert Longo Based in New York, Robert Longo is famous for his 1980s charcoal drawing series, 'Men in the Cities'. http://robertlongo.com/ Julie Mehretu Born in Ethiopia in 1970 and based in New York, Julie Mehretu is famous for her stunning & complex large scale abstract drawings and paintings. http://www.whitecube.com/artists/mehretu/ Judy Pfaff Born in 1946, Judy Pfaff is famous for her organic sprawling installations, which she's been recognized for since the 1970s. http://www.judypfaff.org/ Cy Twombly American artist who subverted the traditional relationship of painting and drawing and is considered as having made a significant contribution to the development of twentieth-century art. http://www.gagosian.com/artists/cy-twombly/ Matthew Ritchie Matthew Ritchie was born in London, England in 1964, and lives and works in New York. He received a BFA from Camberwell School of Art, London, and attended Boston University. http://www.matthewritchie.com/