Bocklin The isle of the dead 1880, Kunstmuseum Basel, Basle Arnold Böcklin (1827-1901)

The picture has something of this: water, outdoors, evening, daylight, cave, rock, home, landscape, architecture, dusk, light, mystery, backlit, sunset, scenic, tree.
Perhaps it’s a painting of a man in a boat on a body of water next to a large rock formation with trees on the other side of the water.