Charles-Claude Flahaut de la Billarderie Joseph Siffred Duplessis (1725-1802)

The picture has something of this: people, furniture, seat, portrait, wear, man, reclining, room, woman, facial expression, two, music, chair, dress, easy chair.
Perhaps it’s a painting of a man in a pink suit sitting in a chair with a sheet of paper in his hand and a rose in his left hand.