Samokish Nikolai Semenovich. Portrait of Grand Duke Nikolai Nikolaevich top Hermitage ~ part 11

The picture has something of this: cavalry, seated, mammal, people, wear, veil, horse, man, equestrian, recreation, competition, two, woman, action energy, motion, lid.
Perhaps it’s a painting of a man riding on the back of a brown horse in front of a group of men on the other side of a dirt road.