Groot Georg – Portrait of Tsarevich Peter Fedorovich and Grand Duchess Catherine Alekseevna. 1740-e 900 Classic russian paintings

The picture has something of this: people, wear, woman, dress, two, portrait, veil, costume, jewelry, theater, group, doll, girl, royalty, embroidery.
Perhaps it’s a painting of two people, one in a blue dress and the other in a red and white dress,.