It was undercoated Chaos Black then had a covering of V. Model Air; Dark Sea grey and then Medium Grey from a higher angle.
Then I went all out with a zenithal Skull white spray which was then purity sealed.
The floors were done Storm Vermin fur.
The Gold sections were basecoated with Warplock bronze, then had Gold Rub'n'Buff drybrushed over the top.
A total wash of Lahriman / Abaddon Black / Agrax Earthshade & water was swiftly covered over the whole model.
All is left is a few button terminals and the grime streaks.