You can always use my method, which is dang near perfect...
Step #1: Find a local Voodoo lady, and purchase shrunken heads.
Step #2: replace resin heads with shrunken heads.
Step #3: Apply helmets, hats, glasses, eyepatches, as necessary.
Ok, I'm kidding. the industry standard is oils...although acrylics are catching on, all of the world's best figure painters use oils...I use only 6 colors, all Daler-Royney oils.
They have a Flesh Tint, which I use as a base over the primer (usually gray or black).
Buff Titanium - which has a beige tone to it.
Burnt Sienna - for the red tones
Raw Umber - for the browns
White - for lightening
Black - for darkening
Lips - 1:1:1 Flesh Tint, burnt umber, white
Eyes - 1:1 white and flesh tint (for the pupils)
Deep shadows - Raw umber
Mid shadows - Burnt sienna
Highlights - Flesh tint
That's my story and I'm sticking to it!
Jeff Herne
Modelwarships.com