I like the composition here. If you tried to get the hsbc sign out of the picture, then you wouldn't have got the blue sky. I like the scafolding in the bottom. It adds to the picture and I wouldn't consider it distracting. This picture would look great in black and white with a red filter and a polarizer to make it more dramatic.
Hey, this has potential....as a fan of architectural shots, I think you can do a lot with these buildings. First thing that comes to mind is to move in close and maybe get a bit more of a perspective effect on the three buildings. ALso it might get rid of the scaffolding on the bottom. Also, do you really need the HSBC sign? Try coming here at the end of the day or something, to have some nicer sunlight. good work, Marc