sylvan dell (reverie) c1916-18 Richard Emile (Edward) Miller (1875-1943)

The picture has something of this: people, palette, man, water, artistic, wall, nude, sit, river, outdoors, Impressionism, nature, fun, woman, leisure.
Perhaps it’s a painting of a woman sitting on a blanket on the ground next to a body of water in a wooded area with trees and flowers in the background.