I like the subject (the architecture, not the casino), especially the blue light behind the clock and those two round windows. I find myself wanting to turn the whole picture clockwise just a little, and maybe cropping the right edge a bit.
You seem to have the same problem that I have with focus in night shots. I haven't solved it yet, so I'm not sure what to tell you, but it does help to have a tripod and use the delay timer so you're not touching the camera. I just set it up and try lots of different settings, hoping that one of them turns out well!