Maris, Matthijs – Portretstudie, 1856 Rijksmuseum: part 3

The picture has something of this: people, portrait, face, man, woman, sculpture, profile, facial expression, veil, leader, side view, wear, saint, wig.
Perhaps it’s a close up of a painting of a person wearing a brown shirt and a red collared shirt with a white spot on the left side of his face.