You overdid the GreyC WAY WAY too much. Especially on Mac(kenzie?). Instead use the clone tool to remove the wrinkles, the freckles should stay to some degree. In Kiersten's photo, remove the rock texture, it looks awful and it's overlapping her hair. Overall the GreyC is overpowered and makes the photos look fake.
yup, greyc killed it...they almost look like they were from house of wax that way...use the heal tool more I also think the colors could us esome work on the first one too, maybe increase the contrast or lighten it up some?