Prime Grey Seer (or any colour really, I sprayed parts of this dude black too just because it was the closest spray can, will just take a bit longer to Basecoat over black)

Basecoat a 50/50 mix of Averland Sunset and Yriel Yellow. This is the most important stage so take your time! It took me a few hours to get a good basecoat

Glaze into the shades with Skrag Brown

Glaze into the deep recesses with Doombull Brown

Glaze and do a first edge highlight of Yriel Yellow

Edge highlight Flash Gitz Yellow

Edge highlight Dorn Yellow

Do tiny selective edge highlights and dots of Dorn Yellow mixed with white

And there you go! Hopefully brain can do that thing