Interaction between religions, possibly. Early XXth century, Léon Bloy, an ever-polemicizing French author, pointed his irate finger at sport becoming the new religion. Here one could consider fashion, make-up etc. to be another one. But that's just a possible reading. Personally I am not inclined to think that every person with an unusual hairdo is trying to state some kind of belief.
Most importantly, the three layers (foreground / middle / background) make a great picture here. And good you asked the young lady to pose.