Hmm, they may need some adjusting.
I just used the photo reference without adjusting and her skin is pale, almost white while the nipples are darker.

The first postings are the models real skin tones.
she is almost albino and it's perfect for adding different tones with vss. :)

Let me introduce you to my multiple personalities. :)
     BluEcho...Faery_Light...Faery_Souls.