Mengs, Anton Rafael – Leopoldo de Lorena, gran duque de Toscana Part 6 Prado Museum

The picture has something of this: model, portrait, fashion, wear, people, man, fashionable, jewelry, collection, dress, jacket, son, necklace, sword, woman, veil.
Perhaps it’s a painting of a man in a red and white uniform with his hands on his hips and his right hand.