Portrait of an Unknown woman Carl-Ludwig Christinek (1730-1794)

The picture has something of this: people, portrait, wear, lid, veil, jacket, necklace, coat, woman, bonnet, outerwear, brunette, cape, pants, opera, jewelry.
Perhaps it’s a close up of a painting of a woman in a black dress with a white headband and a flower in her hair and a book in her hand.