2. Trace the outline of your base.
3. Turn off the layer that the reference picture is on. Clean up the pixels (no overlapping pixels.) This is what you get.
4. I shaded the base in different, bright colors. Here you can see the palette that is going to be the skin color and how it relates to the current shading.
5. Replace hte colors with the corresponding skin colors.
6. Make a face... or not.