Oberman, Anthony – De harddraver ’De Rot’ van Adriaan van der Hoop bij het koetshuis, 1828 Rijksmuseum: part 1

The picture has something of this: cavalry, mammal, people, horse, seated, stallion, mare, indoors, equestrian, two, stable, pony, animal, man, seat, livestock.
Perhaps it’s a painting of a horse in a stable with a man in a top hat and yellow sweater standing next to a brown horse with a yellow blanket on its back.