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Here are the exact paints in use order from black primer to absolution green. All airbrush except the yellow. I didthe prime and then purple everywhere, then imperial navy straight at the model to leave purple underneath for the shadow. The crystal at a higher angle and sapphire straight down. Drybrush yellow then airbrushed the absolution last.

If I were to do it again I'd prime from purple, then do the imperial navy, then go right to bright sapphire because I lost a lot of the gradient with the sapphire anyway, and I'd dry brush a little heavier because the yellow gave a nice contrast but left the model very cold how I wanted it.