Nudo con cane Gustave Courbet (1819-1877)

The picture has something of this: nude, people, baby, woman, shirtless, son, portrait, reclining, naked, girl, water, body, wet, child, man, rock, tree, relaxation.
Perhaps it’s a painting of a woman with a dog sitting on a rock next to a body of water with a curtain on the other side of the painting.