Louis Francois Robin Jean-Baptiste Greuze (1725-1805)

The picture has something of this: people, portrait, wear, writer, man, music, musician, woman, outerwear, side view, jacket, pensive, leader, profile, facial expression, administration, sit, actor.
Perhaps it’s a painting of a man sitting at a desk with his hand on his chin and writing on a piece of paper with a pen in his other hand.