You know, I've just realised (slow that I am) the one thing that didn't look right to me. The heads are pretty much all black. Coloured side vents could help identify the characters that much better, and add a little more visual interest to the heads. Something like this:


I don't know if you want to make any more mods now, or just leave as is (let's face it, they do look fantastic anyway). Just thought I'd throw it in there.