Before I disappear to GenCon for a week, I got 3 quick Micro Art Studio Info Hubs done for DuelCon.
For the Black, over Black Primer I airbrushed P3 Coal Black. To that, I mixed in P3 Exile Blue. To that mix, I added in P3 Underbelly Blue for two more highlights. Shadows added in with P3 Sanguine Base and P3 Thamar Black. I then (very quickly and messily) lined with that final highlight color.
Light bits were hurriedly sketched in with white, then Ghost Tinted with Plasma Fluid, Blue, Yellow and Green.
Like Space Marines? Well, they are the next codex coming for Warhammer 40,000 and the guys at 40K Radio have a PDF copy - so all of their rumors are true. Check out their Facebook Page for all the juicy bits.