Mary Jane Watson Sketch Cover by Duke

Mary Jane Watson Sketch Cover

The Hulk Sketch Cover by Duke

The Hulk Sketch Cover

Joker Artwork by Duke: Sketch Cover

The Joker Sketch Cover

X-Men Sketch Cover by Duke

X-Men Sketch Cover

Star Wars Darth Vader Original Art Sketch Cover by Duke

Darth Vader Sketch Cover

Wolverine Hulk 181 Sketch Cover Hulk 340 Homage Sketch Cover by Duke after McFarlane

Wolverine 181 Sketch Cover

Gwen Stacy Sketch Cover by Duke

Gwen Stacy Sketch Cover

Silver Surfer vs. Thor Sketch Cover by Duke

Silver Surfer vs. Thor Sketch Cover

What If Wolverine got the Venom Symbiote instead of Spider-Man Sketch Cover

What If Wolverine Sketch Cover

Batman Sketch Cover by Duke

Batman Sketch Cover