Landscape Setting Sun aka The Little Shepherd Jean-Baptiste-Camille Corot (1796-1875)

The picture has something of this: tree, rock, landscape, nature, park, mountain, outdoors, wood, people, water, mammal, light, mystery, cave, stone, two.
Perhaps it’s a painting of a man sitting on a rock in a wooded area next to a body of water with a dog on the other side of the painting.