I'm looking for a dirty skin shader, not so much mud caked.  What I'm after is more along the lines of what **shedofjoy** showed in one of his posts earlier in this thread, in these 2 images or like in this linked image.

 

http://www.worldofstock.com/stock_photos/PWO10319.php

 

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi