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OK, still no bump map finished (sigh, it's more work that I expected), but here is round 2. I tweeked a few things that were suggested to me above, and I also made a different expression for this sample (slightly worried look). I added a bit of noise to the skin, which I had to be subtle with. I had to run a 2px median filter over the noise too, to make it more like skin blotches and less like film grain.