Great shot, I love the color in this one (the reds compliment very nicely with the greens in the image). If this image were to be converted to B/W, it would be a lot less dramatic and not as effective. Great job.
You've captured great depth here. The foreground subject adds weight and colour to provide balance. One thing I would have done is have the main foreground flower more to the right. By its placement it seems to be splitting the image in half.