Shtemberg, Viktor Karlovich. Portrait of Baroness DE Grevenits Hermitage ~ part 13

The picture has something of this: woman, people, portrait, veil, girl, wear, princess, fashion, flower, lid, retro, dress, model, child, magic, costume.
Perhaps it’s a painting of a woman in a white dress and a black hat with a black cat in her lap and a bouquet of flowers in her hand.