At the Relay Station Jean-Louis Ernest Meissonier (1815-1891)

The picture has something of this: people, mammal, cavalry, seated, group, man, wear, woman, transportation system, veil, two, cowman, herder, camel, three, livestock, recreation.
Perhaps it’s a painting of a group of people riding on the backs of horses down a dirt road next to a building and a dog on the side of the road.