Portrait of Prince. G. Gagarin. 1829 Karl Pavlovich Bryullov (1799-1852)

The picture has something of this: people, portrait, wear, man, woman, pensive, engraving, jacket, retro, profile, fashion, side view, antique, outerwear.
Perhaps it’s a portrait of a young man in a black jacket and white shirt with his hand on his hip, and his right.