Approaching Thunderstorm Martin Johnson Heade (1819-1904)

The picture has something of this: water, landscape, daylight, outdoors, dawn, seashore, sunset, lake, vehicle, cropland, recreation, mammal, evening, river, grassland, people, scenic, sheep.
Perhaps it’s a painting of a man sitting on a rock next to a body of water with a sailboat in the distance and dark clouds in the sky.