Thanks! Actually we usually use a product called "Zombie Dirt" on her feet to grunge her up a bit or eye shadow when we forget the dirt. As it happened for this shoot we forgot the bag that had ALL of our makeup so we didn't get a chance to pale her out or grunge her up. If you check out some of our other shoots in the Bioshock folder, you can see that's a detail we make sure to do as well. I'm glad that you mentioned it though! That means others notice those things as well like we do!
Awesome work, I love bioshock. I do suggest using a bit of charcoal to make the little sisters feet look dirty as if she's been barefoot for a long time.