Alexander Calder, Constellation, 1943. Wood, wire, and paint, 33 x 36 x 14". Photo: Tom Powel Imaging. © 2017 Calder Foundation, New York/Artists Rights Society (ARS), New York. 

Jackson Pollock, Male and Female, 1942–43. Oil on canvas, 186.1 x 124.3 cm. Photo: Philadelphia Museum of Art. © The Pollock-Krasner Foundation VEGAP, Bilbao, 2016. 

George Condo, Red and Black Compression, 2011. Courtesy of Skarstedt Gallery and Sprüth Magers; The Phillips Collection, Washington D.C.

Cerith Wyn Evans, Forms in Space...by Light (in Time), 2017. Photo: Joe Humphrerys. © Tate.