Venus Before the Mirror Vitaly Gavrilovich Tihov (1876-1939)

The picture has something of this: nude, people, baroque, Renaissance, reclining, saint, woman, baby, god, sculpture, nymph, man, Mary, water, allegory.
Perhaps it’s a painting of a woman sitting on a couch in front of a mirror with a reflection of herself in the mirror on the wall behind of the painting.