Do mods. have no doubts about the first and third images being the same model?
Difficult to say anything useful about the first as the image is so small.
Boob volume
perhaps lacking to be CP?
Something about the nose of the third image model seems awry to be CP.
Areolae similarly large yet CP's have a sharp colour demarcation/boundary that's missing from no.3? Did GH Marks ever work with CP? I'm no expert on him but suspect there'd be other evidence of that, if so?