At the Races the Start Edgar Degas (1834-1917)

The picture has something of this: cavalry, people, mammal, cattle, seated, group, livestock, competition, many, herder, wear, man, cowman, motion, horse, recreation, equestrian, race, veil.
Perhaps it’s a painting of a group of people riding on the backs of horses in front of a crowd of onlookers and onlookers.