Black horse Nikolay Sverchkov (1817-1898)

The picture has something of this: cavalry, horse, mare, mammal, stallion, seated, farm, animal, equine, racehorse, mane, equestrian, two, runner, mustang, bridle, pony, livestock.
Perhaps it’s a painting of a black horse standing in a field with a blue sky in the background and grass in the foreground,.