CONTRAST!
Before you put paint to model, either do a test model or a sketch with the colours you want. By the sounds of it, everything is rather bright.
Boltgun, with a drybrush of chainmail and then a couple of further shades and highlights, will suffice for the metal. For the skin I would look at Tallarn Flesh, shades with thinned down Dark Flesh (more natural shading than Devlan Mud), and highlight up to Elf Flesh. White cloth I would start with Astronomican Grey, shade with Astro + Codex/Chaos Black, then highlight up to Skull White.
You'll need a dark(ish) base, so no snow!
I'd do any gems red, to contrast with the blue in the white cloth.
Cheers