I wouldn't completely compare it to the Wicca rite since it's in a sacred space and presented in sacred contexts in art,but I understand what you're getting at. It's all about presentation.
I think what it comes down to, whether its sacred or erotic nudity, is the lack of invasive voyeurism. Erotica made by women featuring women has a less voyeuristic feel to the point where it's scary. They pull you into their work before you know it, but you still have a way out. Men's work will force you too hard in one way or the other.
That's why I'm so careful with sexual art made by women featuring women. I've seen nonnas quick to call anything featuring a sexy woman (especially if she has a slim body and full chest, or a non-exaggerated hourglass) "male gazey" when actual coomer female art looks exactly like coomer male art: distorted and horrific no matter the body type utilized, or distorted and horrific BECAUSE of the body type utilized.
Not to derail the topic, but, again, these are things a person needs to keep in mind when making sexy women for women. I realized that I can't please everyone, and that was liberating. Whatever you decide to do, go for broke.