Wilhelm Bendz (1804-28) – A Young Artist (Ditlev Blunck) Examining a Sketch in a Mirror Kobenhavn (SMK) National Gallery of Denmark

The picture has something of this: people, group, man, two, wear, lid, three, woman, seat, furniture, elderly, veil, music, easel, four.
Perhaps it’s a painting of a man and a woman in an artist’s studio looking at a portrait.