Now let me guess. A digi by any chance? Waiting for the load oh! number ones up LOL 4,000.000.000 and 1. But you can see why just a fantastic setting. From a pictorial point of view I would do a crop top RH corner just above the lamp this would give you the repeating pattern of the boats and a strong diagonal. Oh! Here is number two, nice one Peter love the way you have used the tree and the railings as a frame. Number three great too, you could try a tighter crop just above the second back lit branch just makes the picture a little tighter, the top is a little uninteresting. Not sure about number four can see the attraction of the colours but dont feel you have isolated them enough. I might have tried a low wide angle shot along the buildings on the RH side. My god theres more here is number five another nice shot again I would crop the LH side just to take the tower out of the centre and to make the picture tighter. As always only my first thoughts on viewing hope it helps. :O)

Those who do not want to imitate anything, produce nothing. Salvador Dali