Just some general advice. If you don't want to be identified then don't take nudes. Once taken and sent you'll have lost total control. No matter how well you "know" someone the potential for that person to distribute/ share is immense, the internet is littered with such "private" pictures.
Secondly, body shots w/out face is pretty impersonal. I'm a photographer and have no issues with artistic nudes. The issue I have with this scenario is that it's not so much "art" as its faceless nudes.
If you're dead set on moving forward look online - Amazon even for nude photography books. Here's one example:
Body and Soul: Lucrative and Life-Changing Boudoir Photography https://www.amazon.com/dp/1138856991/ref=cm_sw_r_cp_apa_i_MNK1CbVFB3XC8