Evolution in Reverse

I was shooting in the Church of the Holy Sepulchre with a friend when a religious ceremony suddenly began. These four nuns were a part of a larger group arranged in a row, but when I saw them positioned like that, it struck me that their apparent order of "religiousness" represented the exact opposite (in my eyes) to the famous illustration of Darwin's theory.  This was a one in a million shot, since it is absolutely not staged in any way, and still looks exactly like I'd imagine it if I had staged it. As far as this is from what I usually shoot, I believe this is the finest image I've ever produced, both aesthetically and in its message.