Really nice picture, reminds me of Baywatch, but its just because of the colours and the location. Though thankfully the Hoff doesn't make an appearance ;)
I really do like this picture, and didn't even notice the dust spots until I read the other comment. I'm not sure if I agree about cutting the bottom off, just to make it more panoramic though, to me it's framed nicer as it is because I like the depth of the sand that you can see. Great pic.
Overall a descent and placid location to have photographed for sure, so my Congrats on that. With a little wider panoramic taking just a bit more off the bottom, lighting the contrast, bumping up the saturation, slight jpeg cleanup including removing a couple of dust spots, and adding just a minimal presentation border I think then that you are GTG, (Good to Go), per the attached.