Well, the little pink flowers are over-exposed, which really hurts the impact of the image. Also, I'm not sure what that thick, straight object to the right of the image is, and wonder if the photo might look better without it. Hope this helps! :)
For me, the lighting is a bit harsh and my eyes are drawn to the center green piece. Perhaps if taken froma different angle or focused on a group of the flowers it would have greater impact.