I began today’s experiment with an arc of yellow. Then I completed the rest of the head skeleton with that same color. I chose an appropriate blue to merge with the yellow to create an acceptable green. I also applied some blue directly, for eyebrow and lip strokes.
I put this aside for a while; when I glanced at it later, it reminded me of the robot girl, Maria from the great silent movie, Metropolis. I think this impression came from the roundness of the head and the curved features of the skeletal scaffolding that I had initially laid down to begin this work.
I like the result and the way the head is surrounded by purple haze.