LadyRaine
Admirable
So the default render settings for SF don't do very well with skin. I'm still playing with lots of the render settings looking for an 'optimal' setting but the easy way to improve things is to up the Pixel Samples. They default at 3 I usually start around 8 for skin, and then go up from there depending on the result.
8 is a good starting point thats where I start at for my sf renders for skin what I usually do is go to medium settings if I'm using my cpu set the pixel samples up to 8 and see what happens lol