Advice on face makeup application

[MLE]

I don't know if I'm doing a costume this year, but if I do, I really wanted to try the whole face painting thing. I was wondering who might be able to help with some tips on how to apply the whole halloween face makeup so it doesn't look like a muddy mess. Like, is it dark colors first, or light colors first? Do I start around the eyes and hairline or work up to them?

CiG, I'm lookin' at you!