The Durham Ox John Boultbee (1753-1812)

The picture has something of this: cattle, cow, agriculture, livestock, bull, farm, mammal, calf, farming, cowman, milk, beef cattle, pastoral, people, pasture, herder, cavalry, man.
Perhaps it’s a painting of a man standing next to a brown and white cow in a field with a cow in the foreground and trees in the background.