Geometrics in cheerful paintbox hues by Russian artist Kazimir Malevich. Living from 1879 to 1935, he was a member of the Suprematism school.

‘‘Suprematism, 18th Construction." 1915.
‘‘Suprematism, 18th Construction.” 1915. Image © Clemens Toussaint/Heirs of Kazimir Malevich. Fair use license. via https://www.nytimes.com/2016/05/26/arts/international/celebrating-kazimir-malevich-a-pioneer-in-abstract-art.html
"Supremus Number 55." 1916.
“Supremus Number 55.” 1916. Collection of the Krasnodar Territorial Art Museum. Courtesy of the Tate Modern. Fair use license. via https://www.forbes.com/sites/jonathonkeats/2014/08/07/banksys-ancestor-this-tate-exhibit-shows-how-soviet-painter-kazimir-malevich-pioneered-street-art-in-1920/#1f996c231d72
"Composition." 1915.
“Composition.” 1915. Collection of the Ekaterinburg Museum of Fine Arts, Ekaterinburg. Photo © Ekaterinburg Museum of Fine Arts. Fair use license. via https://hyperallergic.com/486591/victory-over-the-sun-russian-avant-garde-and-beyond-israel-museum/?utm_medium=email&utm_campaign=Weekend%20030319%20-%20Jack%20Bush&ut
Undated.
Undated. © State Russian Museum, Saint Petersburg. Fair use license. via https://arthive.com/kazimirmalevich/works/474881~Suprematist_construction_of_color