Colors look fine on my monitors. Awesome colors and sweet rendering!
Agree with Paulo, some contrast wouldn't hurt at all. Personally I think it works just fine either way. Very nice concent though, and well done. The "symbol", and yes it looks like one, rather than a hand coming off, reminds me a bit of the Half-Life logo. :)
Hmm, Jeremy, maybe you'd like to check your monitor... This work and the previous one both lacks light colors. I've got a pretty high quality monitor at work and it still looks too dark. On the other hand when I observe it closely I like what you did with the teeth. Also, needless to say, the lettering is just awesome.