1: Primer and 'Messy' Stuff
The first step is to prime the model black. I generally
use Krylon Ultra Flat Black spray primer, but use whatever
method works for you.
Once the primer coat is dry, take care of any 'messy work',
like drybrushing, so you don't mess up your skin at a later
time. As you can see here, drybrushing has the unavoidable
side effect of getting paint on areas where it doesn't belong.