Wow, front page of Dakka!

Awesome.
Thanks guys.
The yellow was white primer, and 12-15 layers of Vallejo fluorescent yellow. I may try on future models layering light brown, to yellows, to the fluorescent, but I brute forced this approach. It involved using the thinner medium from Vallejo to make sure the layers stayed thing but keeping the pigment.
Tedious. To a new level.
Then I used the new
GW green glaze but with more Vallejo thinner medium and water. About 2-3 washes got the right level of color to for the shadow effects.
Finally, I returned with the yellow to catch spots and then a yellow/white mix to highlight.
The dark accents provoked a great deal of swearing and nights of having to just set models down. I don't think I'll be keen to tackle this for other major units in my
GK army, however I do have a matching Librarian, Tech Marines, and Justicar Thawn on the bench. Likely to be a long time before they get done because of a special job I'm doing right now that's going to be on a timeline.
Too many models, not enough time to paint. Story of my hobby.

Glad folks are enjoying it. It's actually a great army to play with Coteaz and some acolytes in the mix. But for now, I'll be building stuff from my sisters, planning my Eldar Exodites, and working on a special project.
Also, I'd like to point out my lone Pal-adin, Steve:
Steve is my Solodin, arriving late to the party as usual. Steve teleports on the battlefield... in utter confusion. You see, Steve missed the memo on the paint jobs. Steve's always the last know these things. And Steve's incompetence weighs on his battle capabilities. In 9 games with this army, Steve has done something good once and only because Captain Ginyu had his back. Steve has mihapped into oblivion, eaten lascannons, assaulted assault marines and failed to kill a one with his daemonhammer, get cut down in close combat with 10 plaguebearers, shot to pieces by pink horrors and even die to overwatch from a missile launcher in a marine unit.
All I can say this... Goddammit, Steve. Goddammit...
A few more of the crew.