A Dark Bay Racehorse With Patrick Connolly Up John Frederick Herring (1795-1865)

The picture has something of this: horse, mammal, cavalry, mare, equestrian, equine, seated, animal, stallion, two, grass, fast, people, action energy, pasture, farm, competition, field.
Perhaps it’s a painting of a woman riding on the back of a brown horse in a field with a white fence in the foreground and a blue sky with clouds in the background.