So it was brought to my attention that the red on the Judge's coat was turning a little pink in some areas, namely in the highlights. To highlight, I was originally just keeping it simple by adding white to the red. It wasn't looking to hot... somebody suggested I add a little bit of yellow or orange. And that is what I did! I mixed in a fairly bright yellow and it seems to be much much better, you can check it out in the gallery here
I decided then to add some brown to liven up the shadows (originally I was just using black). I find it gives it a nicer feel.
Moral of the story: be daring! Use multiple colors when highlighting.