I like the moderately dramatic grey sky, and think it's a nice contrast to the sharply defined foreground elements. I yearn for more view on the left, though, and so am less happy with the square view.
But as you say, you have various views. A tight one centered around the ship looks to be good IMO, too!
(E.g., from the right side leftwards to just include the front-of-piles/wall still water, excluding the next round piling, with sky cropped down to cut out the bright area at right, so, putting pier near the center horizon --and nevermind any Rule... about the wrongness of this!)
Thanks,
--dl*
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