Hillary Scott is wearing a snake for a belt, but that doesn't make her look demented. If Powers really wanted her to look demented, he would have her eyes going in two different directions and have her tongue hanging out. That is how we rolled in junior high when we wanted to show that someone was crazy.
As for an anal sacrifice, I don't see where that's coming from, either. In fact, the Japanese-style logo lettering also mystifies me.
One thing is certain (or is it?): Hillary Scott provides sexual favors in this film, with or without a snake holding her nonexistent pants up. That should be worth something.