Houasse, Michel-Ange – Luis I, príncipe de Asturias Part 5 Prado Museum

The picture has something of this: people, wear, sculpture, woman, Renaissance, museum, man, portrait, statue, dress, son, veil, girl, costume, outfit.
Perhaps it’s a painting of a young boy dressed in a silver outfit with a feathered hat and feathered tail, standing in front of a red curtain.