The Derby Pets – The Winner James Pollard (1792-1867)

The picture has something of this: cavalry, people, seated, group, man, wear, many, group together, lid, mammal, horse, crowd, competition, equestrian, woman, motion, jockey, festival.
Perhaps it’s a painting of a man on a horse being led by a man in a top hat and a woman in a long dress standing next to a horse.