Johann Christoph Dietzsch – Travelers in a Broad Valley National Gallery of Art (Washington)

The picture has something of this: tree, landscape, rock, nature, mountain, sky, scenic, outdoors, water, park, environment, desert, cloud, hill, canyon, river.
Perhaps it’s a painting of a landscape with a man on a horse and a dog on a path in the foreground and a house on a hill in the background.