Fabulous! Brilliant crosshatching, particularly love your depiction of Xolotl (bonus points for that - always had an obsession with Aztec mythology, you've incorporated it well here!).
Silva was probably one of the best villains I've seen. Thinking of starting a painting of him sometime soon, thought I'd see what other artists have made of him and I have to say this is probably one of the best depictions I've seen. Great work.