Does it look ok? This is my first time using curves and levels and to be honest I had no idea what I was doing, just experimenting. I think it's pretty good for a first try, when you compare it to the original image it's amazing how blurry and dark it was to start with. This could become a very addictive relationship I'm afraid..
*EDIT* Here is the original pic for comparison, still good, but it just doesn't show off the beautiful colours of the buildings as well.