Countess Varvara Alekseyevna Musina-Pushkina Franz Xavier Winterhalter (1805-1873)

The picture has something of this: woman, fashion, dress, girl, model, wear, portrait, fantasy, dancer, veil, costume, people, glamour, magic, lady, princess, sexy.
Perhaps it’s a portrait of a woman wearing a blue and white dress and holding a cane in her right hand and a red purse in her left hand.