John Lorne stands admiring a graffiti mural on Second Street and Kinley, near Downtown. It’s a portrait of a Native American spiritual leader who has feathers for hair and a face that appears flooded with the blue sky. “Look at the shading in there. Look at these lines,” he says in a Bronx accent. “Look at this eye.” He points an imaginary spray can close in against the wall to simulate a fine point.