George Stubbs – The Milbanke and Melbourne Families Part 3 National Gallery UK

The picture has something of this: cavalry, people, seated, mammal, man, group, transportation system, two, carriage, wear, recreation, lid, veil, herder, woman.
Perhaps it’s a painting of a man riding on the back of a brown horse next to a group of people in a wooded area with a dog laying on the ground.