Wouwerman, Philips – De schimmel, 1645-1647 Rijksmuseum: part 2

The picture has something of this: cavalry, mammal, seated, livestock, herder, cattle, people, cowman, mustang, horse, two, group, farm, equestrian, farming, cow, man.
Perhaps it’s a painting of a man standing next to a white horse with a red blanket on it’s back and a black dog in the foreground.