My husband reckoned this one should be called “Mooning”. I’m like “say what?”
“Well it looks like a whole lot of people mooning!” (for those of you that are not aware of what this expression means, I’m not going to tell you as it’s a tad rude, but if you’re curious enough you might want to look it up!)
Not surprisingly he would never make a particularly good art critic!

This is in fact a photograph turned into a painting in photoshop. (Not a whole lot of little bottoms! Oops I just gave it away!)