The Colossus, 1808-12, Prado Francisco Jose De Goya y Lucientes (1746-1828)

The picture has something of this: people, nude, water, man, two, woman, portrait, river, reflection, light, rock, reclining.
Perhaps it’s a painting of a man standing in the middle of a large body of water with a lot of people around him on the other side of the painting.