the crop is a bit off, and the flowers look dirty or moldy. Might have been a little more interesting if you got lower and faced them head on, as opposed to looking down on them.
Overall, I like your image. For me though, I sometimes feel I'm looking at two distinct images. The black & white and then the flowers. I think its because they're each half of your entire photo. Perhaps is there was more of the flowers and less of the black & white, I wouldn't see it that way.