Mengs Anton Raphael (1728 Aussig – 1779 Rome) – William Barton Coningham (68x48 cm) 1755 J. Paul Getty Museum

The picture has something of this: people, portrait, man, wear, face, woman, fashion, retro, person, model, human, music.
Perhaps it’s a close up of a painting of a person wearing a red jacket and a white shirt with a blue collar and a red shawl around his neck.