Olga's Gallery has a good biographical sketch of her that supports the theatrical empression conveyed by this flamboyant portrait.
From www.liveinternet.ru/users/katish_09/; size doubled by gogm.
Winterhalter's portraits of Mme. Rimsky Korsakov display her theatrical flair. Straight coiffures were in style, but Mme. Rimsky Korsakov wears long flowing curls adorned with a scattring of flowers. Her décolleté dress evokes images of Hollywood glamour a century later.