Wow, pretty good!
Not trying to be a critic, but the banner on the top right just throws the picture off because it creates the wrong perspective with the brick building. By perspective, I mean if you look at the angle of the banner, and then the angle of the brick building and if you took those lines and kept drawing until they hit a point, that's what I'm calling perspective. Boy, I sure hope I used the right word lol. Anyway, using the banner and brick building as a point of reference for perspective, the sky scrapers seem to be at a different perspective and it throws me off.
The banner is kind of an eye sore as well, and throws the balance off a little too, so getting rid of the banner, I think would just bring this picture full circle IMO.
Regardless, the picture over all is a fantastic picture and you've done some amazing work with it. I really like it, it's a cool picture!