Even tough he is just a Chaos Warrior, I really like this model. I always thought he was a Champion of some sort. So I painted him a little bit Nurglish green.
The most prominent part of him is the bone armour. I gave him some green washes to get a little bit of green colour into the beige.
I used the GW Spiritstone Red for the gems. The gemstone colours are a little bit of a shortcut. But I like using them, instead of shading and highlighing the really small gems.
Looking closer at the model in those pictures I think I’ll have to do something about his eyes. They could use some glowing colour.