as said before youve got the basis for a good image here, unfortunatly there are a few improvements that need to be made. Firstly the photo is under exposed, i think you really needed to go for 30 seconds or longer and adjust the aperture to get a decent exposure without blowing the lights. Reall like the viewpoint with the lights dissapearing into the distance, just need to be a bit more careful with the camera settings.
Ive up loaded a mod to show what it could have been like, this is only my view of what i would have liked to have achieved but may give a better view.
-first the perspective needed sorting out to make the bridge straight and horizon level
-upped the exposure time by 2 stops (if done in camera shutter speed would have been around 80 seconds..), to equal the values in the histogram
-i then added some extra space top bottom and right to put the bridge more into the middle of the shot so it didnt feel so cramped
-reduced saturation a little as the colours were a bit strong.