I don’t play Necrons, although I have kicked around the idea of picking them up as a second army once all my Tau are assembled and (at least 50%) painted. If I did, though, I wouldn’t paint them with the standard black/metal/green color scheme. I think I’d do something more ceramic-looking. Fortunately, I found this Necron painting guide that shows a simple way to do just that. Let’s face it; this just looks cool:

Non-metallic Necron from the painting guide

I don’t know about the red, though. I think I’d keep the green plastic bits. Still, it’s a great guide, and the technique is so simple. Check it out!