Portrait of the Marchesa Luisa Casati with a Greyhound Giovanni Boldini (1842-1931)

The picture has something of this: woman, costume, fashion, fantasy, veil, people, girl, wear, portrait, dress, model, mystery, glamour, dark, lid.
Perhaps it’s a painting of a woman in a black dress with a black hat and a purple dress and a black dog in front of a brown wooden door.