From www.antique-prints.de/.
This is a color version of the Chalon-Ryall portrait of Lady Augusta Baring seen in the last image.
Keywords: 1835, Chalon, Ryall, British, hurluberlu coiffure, off shoulder bateau neckline, modesty piece, quarter length puffed sleeves, bows, epaulettes, lace, belt, natural waistline, full skirt, floral bodice ornament, bracelets, gloves