Totally happy with how these turned out. I used an airbrush to do the skin. Bugman's Glow followed by Flayed One Flesh. The airbrush gives me tons of transition. I then sprayed a tint of Reikland Fleshshade over the whole thing before going to town on the details. Again, really happy with how they turned out.
I was a little concerned that the skin would make them look weird compared to the rest of the army, but I think there are enough common points to tie them in. Here's a quick shot with a few other models from my team.