The Lake of Nemi Anthony Vandyke Copley Fielding (1787-1855)

The picture has something of this: water, landscape, sky, rock, tree, nature, scenic, outdoors, seashore, mountain, sea, dawn, sunset, daylight, ocean, evening, vacation.
Perhaps it’s a painting of a landscape with a castle on top of a hill next to a body of water and people on the other side of the hill.