The pictures are hot as always, and Overdoze is right, you really got some dust on your lens. I had it too a while ago. You can see it right next to the building like in the middle of it there is like a lil round dark spot. That is dust that is on the sensor. You can either bring your camera to a shop or get like a blow ball (I dont know what the exact name is in english) and blow it out yourself. I know a lot of people that dont do it themself cause they scared to mess anything up, I did and I never had a problem.
My fav. are from top # 1, 7, 10, 17 and all shots from the other night.