Refreshment A Boy Watering His Grey Pony John Frederick Herring (1795-1865)

The picture has something of this: cavalry, people, mammal, seated, man, two, cowman, woman, wear, saddle, lid, stable, child, herder, livestock, recreation, veil, action energy.
Perhaps it’s a painting of a man riding on the back of a white horse next to a dog and a horse drinking faucet from a faucet.