Thanks both for the kind words!
@The Pounder: Bone colour on the terminators is as follows:
1. After printing white, underbase with Leather Brown (Vallejo Game Color), mostly focusing on shadowed areas (with airbrush)
2. First highlight layer with Iraqui Sand (Vallejo Model Color) with airbrush
3. Second highlight with Bonewhite (Vallejo Game Color) with airbrush
4. Using Agrax Earthshade (Citadel Shade) paint all armour intersections / deep shadows.
5. With Ivory (Vallejo Model Color) edge highlight all pieces.

Then rest