=silwenka said it best, there is truly not a pixel wasted here.
I really like the combination of shapes here, particularly the still and moving elements, which I find completely different from what I have seen. Most fractals with any kind of blur in them all had that blurry look, but this one confines it into certain parts of the image. Great fractal control, apparently.
If there is one thing I would like to see, it's more of the blue in the fractal, the middle area to be particular. Grey isn't a very mesmerizing color and works best for revealing intricate details, but this one doesn't seem to need to element, and more color would give it a little more appeal.