A recent picture I posted on Facebook that had me banned for 24 hours

How would you define the following pictures? All of which got me in hot water with face book. Is it erotic or artistic in nature?

For some just showing your backside would be considered erotic/pornographic.  While I am on the other end of the spectrum. Unless there is an erection or people are fucking, it falls into the artistic realm.

 Simply being nude should not automatically make the picture fall into to the erotic category. In the United States we are spoon fed at an early age, the body should be clothed at all times save for ones bedroom. Nudity in public places are discouraged if not outright banned.

Andrew Adam Caldwell took these pictures...