A absolutely lovely image, Janine, and deserving of your top 10 finish. The lovely pastel hues of the sky as it reflects against the calm water is wonderful. I would have loved it if you could have pulled out some of the pinks barely visible in the high clouds a bit more, and maybe deepen some of the oranges. Noticing you have the Nik Collection, this is where some of the Bi-Color filters in Color Efex can really make a sunset image pop. But I'm getting picky.
The composition is excellent, though it would have been better if you had been able to get beyond what appears to be the tide line of shells that runs across the bottom right. Or perhaps masked them out a little better. I can never tell if these would be considered "powerline-like incidental distractions". Regardless, it's what kept me from giving this an 8 or 9 instead of a 7.
Really a fine capture. Anything else I might find to call attention to would be a fact of nature and location and I suspect there wouldn't have been much you could have done about that at the moment. :)