Mrs. Frances Henrietta Jerningham (later Lady Stafford) John Hoppner (1758-1810)

The picture has something of this: portrait, people, woman, fashion, model, wear, girl, dress, nude, jewelry, veil, fashionable, lid, necklace, glamour, music.
Perhaps it’s a painting of a woman in a brown dress with a black ribbon around her neck and her hair in a bun in the back of her hair.