Castle in the Eifel Karl Friedrich Lessing (1808-1880)

The picture has something of this: landscape, mountain, outdoors, water, rock, daylight, sky, dawn, sunset, evening, tree, fog, scenic, seashore, river, nature, light, hill.
Perhaps it’s a painting of a rocky landscape with a castle on a hill in the distance and a stream in the foreground, and a man on a horse.