Tattoos mean nothing. Where I live I see them on 16 year olds all the time. I think you have to get your parent's permission, not sure.
With a model that looks young like her it really is a matter of who is doing reviews that day. Different reviewers look for different things. If I start going back and second guessing the person reviewing then things get messy. That being said I tend to be more strict about blind links and bad coding. A reviewer that has a 16 year old daughter is going to be more strict about what looks of age.
Resubmit the site with a note saying that I said it is ok and refer to this thread and we will get in it there for you.
