To be completely honest, I think that we all have better things to be worried about right now than picking apart an artist's depiction of Mother Earth and the mural she painted on the statue. If you think that it looks like a "vagina" then that is your own opinion ... what is next?
This is getting ridiculous and, if an artist cannot express their own visions, then we might as well take all of the art down in Bemidji because someone might be offended by the native American statues that are in the park also.
I think the statue is a beautiful representation of nature. If some adults are worried about their children seeing the nude painting ... they should take a look at some of the crap that is on TV these days; to me, that is much more offensive.