LARGE GRAFFITI ART HERING? L.A. II ORTIZ?: Untitled Silver Marker/Canvas with many hidden abstract designs, including worms, skulls, figures, etc. Silver Marker/Canvas, 78.5'' x 51'', unframed, no visible signature. This artwork bears close resemblance to an Angel Ortiz artwork, who was inspired and would often work in collaboration with world-famous graffiti artist Frank Hering.