Partisans in the Belarusian forests. Mikhail Avilov (1882-1954)

The picture has something of this: tree, mammal, nature, wood, landscape, outdoors, grass, cavalry, daylight, animal, environment, park, rural, wild, field, countryside, farm, hayfield.
Perhaps it’s a painting of a group of horses in a wooded area with a man on a horse in the foreground and a man.