It's been a long time since I last worked on this guy but I finally took the time to focus on him for a little while and made quite a bit of progress.
I coated the entire body with Hawk Turquoise then washed it all with Thraka Green. I then applied a light drybrush of Space Wolves Grey focusing on the body but also hitting the scales a little too. I washed the scales with Devlan Mud and then gave them an extremely heavy drybrushing of Regal Blue. I rewashed the scales with Thraka Green again and then gave the whole body another light drybrushing of Space Wolves Grey.
I think the effect turned out really nicely. I'm not sure there's enough shading in the non-scales portion though. I'm going to leave it for now but I'm thinking I might give the skin a wash of Devlan Mud too and make sure I get it down into the crevices.