Hi
All good, nothing wrong with the lighting and execution of the pics. In fact I like natural light photography, simply, to get good results often requires advanced photographic skills. You and your model have have done well to capture that "retro" look.
Unfortunately, in the true sense of authenticity, the model's body modifications don't do anything to enhance the retro spirit of the images.
What I will never understand, however, is the willingness of people to mutilate themselves. Like all fashion trends they appear quickly and disappear often as quickly which makes body modifications, well, a "permanent fashion trend".
There are two things young people will regret when they get to mature age: Facebook and tattoos.
(As always, my personal opinion is the only one I wish to express)
Cheers