I like the composition here. It reminds me of something I may have seen on a Mac screensaver. Anyway, I do agree on a bit more focus on the head but otherwise a very nice image. Well done.
I agree with everyone else. I love your OOF background and the colors are really lovely. There is a bit of a white "shadow" right at the curve of the plant - you might think about possibly using the clone tool to darken that so it matches the rest of the plant.