Interesting looking shot..
Well focused on the center, I like the apparent backlighting and the glow effect it gives. The only thing that bugs me about it, and it may just be due to the resolution of the photo, is the rather abrupt changes in the purples leading away from the center on the petals (may also be the way the flower naturally is, I don't know). Also (ok, two things), the upper left corner of the photo is a little distracting. Still though, a good effort.
Where in Detroit did you find that?