George Mountford, Huntsman to the Quorn, and W. Derry, Whipper-In, at John O’Gaunt’s Gorse Richard Barrett Davis (1782-1854)

The picture has something of this: cavalry, people, mammal, seated, group, man, horse, herder, wear, recreation, cowman, lid, farming, competition, motion, many.
Perhaps it’s a painting of a man riding on the back of a brown horse next to a brown and white dog and a black.