Black + Blue (Painting #4 of 18) George Mullen, Black + Blue, 2016, barbwire and oil on canvas, 30 x 48 inches. Copyright © 2016 George Mullen. All rights reserved. Black + Blue (Painting #4 of 18) George Mullen, Black + Blue, 2016, barbwire and oil on canvas, 30 x 48 inches. Copyright © 2016 George Mullen. All rights reserved.