Not too bad! The characters all look good, and so do movements, weapons, blood effects etc. he background could use a facelift though, it's a bit.. gray. :P Lightning effects are a bit thick, and it feels like some sound effects could be added, like, when the bullets hit, the lightning strikes, etc. Oh btw, let the credits roll for a special re-run with background music, haha. Keep it going!
-cd-