#1 Crop out that building on the right and you're gold.
#3 A little straighten and cropping out whatever that is up top would make this one really nice.
#6 The foreground is distracting. I'd move closer ( looks like you can move up quite a bit from where you took this ) and try to frame / zoom in more on those 2 tall buildings in the middle.
Yea thanks I dont know why I put that pic up I have a lot better ones. I cant upload any pics onto my sites from my computer so I do it from my ipod touch. Thanks for the C&C.
First shot is definately best of the set. The fourth one looks like it's got potential if you could catch it early morning or some time without all the people/cars.