I painted up a test model for the Hordes of Vormond Ghoul troop. I had some problems coming up with the paintscheme...GW tends to paint them in lighter, pastel like colors, but the codex mentions right of the bat that ghouls have 'dark' skin. So I decided to paint them black. I had this idea of black skin with orange shining eyes. I didn't know what it would look like so I googled to see if anyone else did it and I could find one person: right here. (scroll down a bit).
I wanted mine to be a bit darker and not have the light nails, I think they are a bit distracting from the face.
Anyway, here he is: