Colour fields

Heinrich Kühn - Wanderer in der Wiese (Autochrome) - 1912

Felice Casorati - Dreaming of Pomegranates - 1913

Andrew Wyeth - Christina's World - 1948

God-shaped hole

Ivan Kliun - Date and name unknown

Gerhard Marcks - Small altarpiece - 1920

Salvador Dali - Parfois je crache par plaisir sur le portrait de ma mère - 1929

Soviet anti-war poster - 1980s
'Neutron bomb kills people, but saves material values"'

Precision and Soul

Robert Michel - Propeller-Wind - 1918–1919

John Covert - Ex Act - 1919

Pierre Fix-Masseau - Exactitude - 1929

Observers

Pippo Rizzo - Omaggio a Léger - 1961

Ernst Haas - Sailor, Guggenheim Museum - New York - 1961

Troy Brauntuch - Untitled (Officers) - 1982

Symmetries

Peter Behrens - Der Kuß - 1898

Constantin Brâncuși - Le Baiser -1907

Franz Wilhelm Seiwert - Der Kuß - 1933