I've used a base spray of light brown from Cobra.
Perfect for the skin. Not so for the metal.
The upper one has a coat of black before the metal work.
The lower one has metal painted on to the light brown.
Looks a little wishy washy.
Plenty to do yet - strapping, lumps and bumps
and highlighting.
I've used Ratskin Flesh rather than a paler pink as on other Skaven.