Delacroix Eugene (1798 Charenton-Saint-Maurice – 1863 Paris) – Moroccan Horseman Crossing a Pond (46x38 cm) c.1850 J. Paul Getty Museum

The picture has something of this: people, water, woman, recreation, group, two, child, man, wear, nymph, swimming, three, reclining, mammal.
Perhaps it’s a painting of a man riding on the back of a white horse next to a body of water with a man.