Lady in blue (Portrait of the artist E. M. Martynova) Konstantin Andreevich Somov (1869-1939)

The picture has something of this: woman, dress, wear, portrait, fashion, people, model, jewelry, girl, veil, fashionable, gown, glamour, princess, necklace, retro, queen.
Perhaps it’s a painting of a woman in a blue dress standing in front of a bush with her hand on her chest and a book in her other hand.