Loved the artwork, very stylised and dark. Reminds me of Spawn and Sin City.
Slightly cheesy ending, was expecting at least a couple of punches to be thrown but your ending still works.
I think a little bit more action would validate the need for a superhero typed character, but it's your call as it's creator.
Slightly choppy animation at times, sound effects were in synch (always a bitch if they aren't ain't it?).
Still, good work.