Portrait equestre de Louis Philippe (1747-1793), alors Duc d’Orleans, en uniforme de Colonel-General des hussards Horace Vernet (1789-1863)

The picture has something of this: cavalry, people, seated, veil, mammal, two, wear, sword, woman, weapon, man, equestrian, group, costume, horse, outfit.
Perhaps it’s a painting of a man riding on the back of a horse with a plume on his head and a sword in his hand, in a wooded area with dark clouds.