Bathers aka The Secret Ignace-Henri-Jean-Theodore Fantin-Latour (1836-1904)

The picture has something of this: nude, people, baby, monkey, girl, woman, mammal, two, water, child, primate, family, love, tree, portrait.
Perhaps it’s a painting of a man and a woman sitting next to each other in a wooded area, one of the men has his arm around the woman’s neck.