Star would have been more like it. While I do see a sort of spiral in the flower it mostly forms into a shape of a star as the lines spiral to the center. Then again you might have just been applying to this look when naming this photo "spiral". Thanks to the slight blurriness around the entrance of the photo it's kind of like staring down at a vortex, but with something sticking out of it in the middle. I say it looks good so nice job.