Adélaïde Labille-Guiard – Marie-Thérèse-Louise-Victoire de France, called Madame Victoire, before a statue of Friendship (Amitié) at the Château de Bellevue Château de Versailles

The picture has something of this: people, woman, dress, wear, veil, sculpture, princess, portrait, girl, two, statue, wedding, costume, baroque, model.
Perhaps it’s a painting of a woman in a blue dress next to a statue.