Nude Descending a Staircase (1912) | Marcel Duchamp
Referenced by Roger Allard in his essay Signs of Renewal in Painting, appearing - as a German translation from the French - in the Blaue Reiter Almanac (1912). Note that at this time Duchamp was considered a cubist, although he later became better known for his Dadaist associations.
No. 2 is my favorite. Although for some reason I remember it being way more green…