I would like to share my process here:
Step 1: Sketching: Building a model for success
At this stage, I sketch, erase a lot and generally lay the foundations down.
Step 2:Fill it with a color: Like toning your paper in a painting class taken years ago...
At this stage I fill the figure with color because I’m going to create a new layer above this one which will be clipped to it, to help speed up coloring.
Step 3: Putting the true colors in: Now I place my true colors where they belong in their respective spots on the figure.
Step 4: Trying to figure out light and shadow
Step 5: Slowly building upon colors and the colors that came before them and so on...
Step 6 : I just kept trying things with brushes, different, shades, and highlights to get here...
Step 7: It was getting late so I just tacked something in the background for good measure.
Now I call it complete!