Thanks for these shots!
I think it is photoshopped.
On the second picture, if you look closely at the first two girls in the foreground, starting from the left, there is a huge difference of color and texture between their legs and their feet's skin.
Imo, the stamp tool has been used to soften the transition between the tights and the skin but it is not very well made. There are huge areas in the same color.
Awesome shots anyway, of course.
