Emperor Charlemagne and Emperor Sigismund - Albrecht Durer (1512, oil and tempera) (upload.wikimedia.org)
The Soldier Drinks - Marc Chagall (1911-12) (www.guggenheim.org)
'71 Buick - Robert Bechtle (1972) oil on canvas (www.guggenheim.org)
Reptiles - M.C. Escher (1943) (1.bp.blogspot.com)
Gondoliers Siesta - John Singer Sargent (1904) watercolour (upload.wikimedia.org)
Preparatifs - Francine van Hove (loeilduprince.com)
Young Hare - Albrecht Durer (1502) watercolour on paper (upload.wikimedia.org)
Portrait of Camilla Gonzaga and Her Three Sons - Parmigianino (1535–1537) (upload.wikimedia.org)
Self Portrait - Norman Rockwell (1960) (uploads8.wikiart.org)
Hellelil and Hildebrand, the Meeting on the Turret Stairs - Frederic William Burton (1864) (www.nationalgallery.ie)
Watercolor and gouache on paper