"Sunday Afternoon in the Country," Florine Stettheimer, 1917.
Stettheimer (1871-1944) was a Modernist painter and theatrical designer, as well as a pioneering feminist, poet, and salonniere.
While at first glance this seems rather mundane, the colors are strange; check out the red tree. Some of the characters seem to be doing bizarre, random things, and some appear to be sitting in upholstered armchairs.
In reality, this is her memory of a picnic she held; in the upper right, hardly visible, she paints herself working at her easel. In the lower left, photographer Edward Steichen points his camera at Dada founder Marcel Duchamp. leaning on a table, while Ettie Stettheimer (the artist's sister) stands behind him in the red coat. Other real-life people are depicted, but in a strange style reminiscent of Chagall.
Stettheimer refused to identify with any group or school; her work is Modernist by default for the time she worked in and her style. Not taken seriously in her liftetime, her work was donated to museums and rediscovered in the 1990s, and now she is hailed as a great American artist.
From the Cleveland Museum of Art.