EDIT: Final result is here: http://theambit.blogspot.ca/2013/06/chaos-hell-blade-finished.html
I used GW colours which probably isn't as ideal as airbrush paints but it still worked well enough. There's a bit of grain to the last coat of red I applied sadly. I think that paint pot is a bit bad.
|3rd layer with yellow.|
|2nd layer with orange|