I've lost count of how many of these guys that have come across the table over the last year or so, but it's definitely quite a collection. :-)
I can't say enough how much projects such as this and WWX have altered my overall palette. While I never use more than 6 or 7 colors to paint a particular figure, there are even fewer involved with these guys.
I have painted some of them with as few as four. Since the greenish tones I have been using already contain a good deal of yellow, that has meant that I can use them with the 'flesh tones' to create some warm leather colors. Even the snow highlight color is used to create the skin color. ;-)