#1 looks great!
#2 I think would be a little better if the building was off-center.. Remember rule of thirds. LOVE the sky.
#3 and #4 aren't level. be sure to keep the camera on a level plane. Keep your horizon horizontal.
#5 and #6 seems as though there is nothing of focal interest. Is it the boat? Zoom in and don't be afraid to let it take up more of the frame.
#7 I'm a big fan of HDR, but something seems off here. Try tweaking in photomatix a little more.. if that's what you're using to process HDRs.
All in all, very crisp night photography. You've definitely got the mechanics down! Just a little fiddling with the composition, and you're good to go. But I've never been known to have an eye for composition, so maybe I'm wrong and someone else can chime in.
BTW, what's next? E92 M3?