Mother Jenghiz Khan # 18 Sketch homonymous pattern (1933 GMV) Roerich N.K. (Part 3)

The picture has something of this: landscape, people, beach, water, seashore, wear, outdoors, sand, desert, recreation, action, man, ocean, two, mountain.
Perhaps it’s a painting of a man riding a horse with another man standing on the back of the horse in the middle of a field with mountains in the background.