Source material was good.
Actually, same as the last guy said. Johnny was always supposed to be kinda nice, for a psychopath... and he, dispite his look, was never all that goth. I think the voice betrayed the charicter a little bit in this case. Also... the timing was a little off. If it seems I'm being too harsh here, I apologize, but you did do my favorite gag, from my favorite comic.