[By making Drax I simply painted for pleasure, and I completely forgot to take pictures of step by step ... if you have any questions either here or by obi-fran.]
Let us begin...
Base layer with Rhinox Hide, first light with Mournfang Brown and final highlight with XV-88.
(You can give one last light with Vomit Brown in Starlord, or last light with Rakath Flesh, for a touch something different in the leathers).
For the sword I used a very old color of GW, Amethyst Purple (a metallic purple color). It could be used Leadbelcher mixed with Xereus Purple for example. We will raise the color mixing it with Chainmail and Mithril Silver.
(As with the clothes we can make small scratches with brush simulating strokes and damage to the surface of the sword).
The handle of the sword (or any gold detail)
To the base color we'll use Balthasar Gold, lights with Gehenna's Gold and lights of this mixed with Mithril Silver.