The Rt. Honorable Stephen Poyntz, of Midgeham, Berkshire Jean Baptiste van Loo (1684-1745)

The picture has something of this: people, wear, portrait, music, theatre, opera, costume, man, festival, performance, outfit, fashion, jewelry, theater, stage, woman, model.
Perhaps it’s a painting of a man in a blue suit with gold trimmings and a black jacket.