Song of the Angels by William Adolphe Bouguereau. Wall Decal - Peel & Stick, Removable (20" x 14") Song of the Angels , 1881 by William Adolphe Bouguereau. Wall Decal by AK Wall Art. Peel and stick application, removes easily without damaging wall paint or leaving behind residue. Can be reapplied/repositioned. Beautiful smooth application makes a statement in any space!