Jakob Magnus Sprengtporten (1727-1786) Carl Fredrich Brander (1705-1779)

The picture has something of this: portrait, people, jacket, outerwear, wear, man, lid, coat, leader, facial hair, neckwear, cravat, writer, music, necklace, facial expression.
Perhaps it’s a close up of a painting of a man wearing a blue coat and a white shirt with a star on his left side of his left arm.