So I am trying to remove this large amounts of dirt from this little girl's face and even out her skin tone on these pictures I have taken but so far I'm not having any luck and I was hoping someone would be able to tell me the easiest and best way to do it. I've tried using spot healing, spot healing brush, blur, filters, regular brush and none of them seem to work well without mekeing the photos look weird. Here is an example of one of the picks I'm working with.