From Wikimedia; spots removed with Photoshop.
Christine Boyer is shown wearing gloves and a dress with a Minoan, bare-breasted, neckline made modest with her chemise. Alternatively, she could be wearing vest.
Keywords: Isabey, Cristine Boyer, Bonaparte family, French, curly coiffure, chemise, square neckline, quarter length close sleeves, cuffs, bodice, Minoan neckline, strap sleeves, Empire waistline, close skirt, gloves