Interesting macro, Stuart, I like it. I believe you had light coming in from almost straight ahead, and it really makes the edges glow nicely, especially in the top part against that dark background. The limited DOF and the overall blurryness give a very dream-like impression, as if this plant was magical; the glowing light adds to this impression. The diagonal composition was a good choice. What's the curving white line down above the right corner?