Pure symmetry would've helped this picture. Shadow in the bottom (in the center actually) is disturbing me a bit and I wish there is no gap between the petals on the left. I love the idea and you gave the perfect title. I gave it a 9.
I gave this photo an 8. I love how you used the natural color of the flower. Just a little too much black on top IMO. Seems a bit splotchy also, which distracts a bit.