Horrible voices.
This is probably something you wouldnt know, but Johnny has sickly yellow skin and really dark blue hair. The voices were terrible. Johnny isnt supposed to be some dark evil guy with a raspy voice. He's supposed to be a goth guy who other than killing people is pretty normal aside from being insane (if that makes sense). Make Johnny's voice seem a bit happier about what he's doing instead of trying to scare the guy and it will be a lot better.