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I believe its a very complicated technique called non-metal-metal. Which basically means you use non-metallic paints to paint an item to seem like it has the reflective qualities of metal. I am sorry to say, but if your a novice you would best concentrate on simpler techniques. Work of that caliber is something many painters take years to reach.
Joe Peshi (lone wolf) kill tally:Lash Sorcerer, Ghazkull, Yriel, Termi Libby, Vulkan.
Carter hit it right on the nose, it is NMM (Non-metallic-metals) It takes a long time to master, and you should concentrate on more basix things right now.
i can blend somewhat decently im told, isnt nmm just a whole lot of blending?
The finer NMM does include blending, but it also includes many other variables. You need to generate a reflection of light, shine and shadow on a model, and make it look metalic rather than yellowy-brown (in golds case or grey in metals case).
Heres a basic toutorial on NMM from B&C.
That is GODLY!
Despite logic I say, have a go at it. THere's nothing to be lost if you fail.
The only way to evolve as a painter...really comes true in any aspect of life I guess, is to constanly press your self and your boundaries.
Even if the advanced NMM-techinique won't shine as you would have wanted it to, you'll learn so much other things about painting while at it.
Each of these things might have seemed "way to advanced" before you started the NMM, so advanced in fact you maybe wouldn't have even bothered to try them out at all. Now they are like a bonus.
So, I say: read a couple of tutorials, then start. If things are getting out of control hard, why not ask someone who you know master the technique to guide you?
Oh, and good luck Goblin
To make things easier, it looks like he painted the NMM on either paper or very thin styrene.
And over there we have the labyrinth guards.
One always lies, one always tells the truth, and one stabs people who ask tricky questions.
I'd also recommend not painting something that huge with your first shot at NMM (or any new technique, for that matter). I try out new colors on sprue, for example. I've thought about giving NMM a try sometime soon, but if I do, I'm gonna do it on a sword, halberd blade, shield or something else SMALL. I'd suggest you do the same, and work your way up to the side of a land raider.