Kate,

I like the lighting but agree with Gary that the sky can be cropped.

As for tips - What I would do if possible is to setup the tripod and camera with a weight hanging from the centre of the tripod to give it more stability. I would then set the timer and press the button and then get off the balcony and wait for the camera to finish.

You can however make a thing about the vibrations of bridges and one of my photos got some nice reviews and that was a surprise but it had a lot more shake. There is nothing that I found that you can do to stop bridges vibrating.

Roger R.