Viscount Lascelles John Hoppner (1758-1810)

The picture has something of this: people, portrait, man, jacket, wear, woman, outerwear, facial expression, royalty, leader, two, Renaissance, poetry, pants, music, seat.
Perhaps it’s a close up of a painting of a man in a red coat and white pants with his hands in his pockets and his right hand in his other hand.