I sometimes use the tile node to render out clean lines so we can see what the UV mapping is doing.

This shows pretty well that the back of the nostril is severely stretched, resulting in the strange stripes. Click for full size.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)