Ha! Awesome! I like the sinister look that you gave Vyse.

I don't think I'd change it. I love the font of the lettering, too. If anything comes to mind, I'll let you know, but I like it the way it is.
EDIT: Ooh, I have just one idea. I like how you filled both his hands! I think there's even a sword from his game that looks like a fish! In his left hand is usually another smaller sword that is held in an interesting fashion, seen here:
If I would make any change, I would replace the knife in his left hand with a sword something like the one in that image. If it's partially obscured by his leg, that's ok.