Great lighting and interesting composition - love how the small dolphin designs are heading out to the water Color is fantastic too, and you nailed the exposure with that little bit of fill flash being perfect.
I was wondering if a crop off the left edge to lose the stones in the lower left corner and partway up the left edge might be worthwhile. It might further isolate the blue dolphin designs and also remove the slight reverse perspective that tends to lead the eye back out the bottom of the frame a little bit. Just a thought - I'd have to see it to decide if I liked it better that way. In any case, great shot and very well captured.
Color is fantastic too, and you nailed the exposure with that little bit of fill flash being perfect.