I like the monochrome ones (3 and the last one) best .... I feel the black sky is more complementary to those ones. The colour ones are crying out for colour in the sky, I feel. That last one is beautiful, the reflection perfect!
Cheers guys, these were taken late enough at night, last one was at 11.54, first one at 9.00 ish. There wasn't a cloud in the sky, so nothing to reflect light from the city. I have done a re-edit to try and get something out of the sky, if you look real close you may see a couple of stars