Charles Lewis Fussell, American, 1840-1909 – A Young Art Student (Portrait of Thomas Eakins) Philadelphia Museum of Art

The picture has something of this: people, man, nude, portrait, wear, woman, shirtless, son, indoors, facial expression, music, recreation, position, boy, child.
Perhaps it’s a painting of a shirtless man sitting on a chair holding a paintbrush in his right hand and a knife in his left hand.