I'm doing a blueish theme as I couldn't decide on slaanesh or tzeentch so i picked a light blue as a happy medium. 

First step after priming is base coat the metal areas pure white.

Next step is to apply blue glaze to all the white parts. 

Next I apply a green wash over the blue after it has dried.I forgot to take a picture of this step but it basically turns into a deep green when the green wash dries over the blue. 

Next step is to take ice blue and dry brush it on the raised areas. 

All and all its a pretty easy process. And on the warriors of chaos it's most of The model. Then you just go back and highlight the skulls and whatnot and you have an easy tabletop standard.