I don't find anything particularly wrong with your shot here ... composition and exposure etc are all ... nice. I don't find anything particularly interesting about it either though I'm afraid Ig.

I think it looks like you walked down onto the beach ... lifted the camara and fired. I've seen you do much better.

I think a scene like that which has little in interest needs a special element to make it work. Great light for instance ... dead still water so the crane reflects well ... a strong, stormy sky or vivid sunset/sunrise ... lightning striking in the distance ... something effective.

Working with what you had there though my suggestion would be that I'd have tried to duck down lower and move well to my left and forward to use that rock wall to hide the containers and isolate the crane more, as well as making the crane larger in the frame. With luck you'd get a perspective of the cranes height and bulk in this way without so many distractions. It would also take out all other bright coloured elements leaving the crane as a major feature and point of interest.

This for me is a shot that you should have looked at in the viewfinder and asked yourself ... "Ok ... I have what I want in the shot ... now what's in there I don't want?"