Ok here is one done quickly, showing the arm area not completed. This means you have many shaders tho, which can be a management pain. Please someone develop a shader management plugin. I have officially asked mark and julien I believe. Eric? Don't want to have to start learning how to do that also.These are done with image maps. It takes time to get all the channels and maps with and understanding of how they work. But it is worth it. That and mucho ram. Seriously spend time in the manual(which only covers so much) and the program. You have to try many options. SSS is tricky tho. This is no gi...basic.
No need to think outside the box....
Just make it
invisible.