wow- very dynamic picture. excellent composition- the repeating shape of the circle is way cool, especially the way you built it off the manmade circle. the lines radiating out from that circle draw the eye to the others.
there is a hotspot in upper middle left, but the argument could be made that even that lends to the shot as a whole.
super nice image.
The ripples are fantastic. Great job. I too think that the only thing that you might want to fix is the top left/middle part of the photo. It is a bit too light.