Cozens John Robert The lake of Nemi Sun John Robert Cozens (1752-1799)

The picture has something of this: landscape, water, tree, nature, river, sky, mountain, outdoors, seashore, scenic, island, environment, hill, rock, sea, beach, wood.
Perhaps it’s a painting of a landscape with a man and a woman standing on a hill overlooking a body of water and a castle on a hill in the distance.