Portrait of Louis XVI (1754-1793) Joseph Siffred Duplessis (1725-1802)

The picture has something of this: people, portrait, man, person, jacket, wear, popularity, writer, famous, elderly, science, poetry, leader, outerwear, retro.
Perhaps it’s a painting of a man in a blue jacket and white shirt with his hands in his pockets and his right hand in the pocket of his other hand.