Fredrika Dorotea Vilhelmina (1781-1826) Johann Heinrich Schröder (1757-1812)

The picture has something of this: portrait, woman, people, wear, model, fashion, nude, dress, jewelry, girl, glamour, actress, music, indoors, seat, pensive, studio.
Perhaps it’s a portrait of a woman in a white dress with a blue sash around her neck and her left arm wrapped in a blue and white shawl.