I am sorry but the first shot does nothing for me personally. I do like the second though, the twisted angle makes for an interesting composition. I noticed that you have some lens flare in the sky, on this shot it would be quiet easy to remove in PSP or Photoshop and would stop if from being slightly distracting and leading your eye away from the building.
As EosD has already stated, adding a simple border can transform an image. It is worth playing around with these and if you have Photoshop there is a tutorial in the Tutorials, links and reviews forum that may be helpful.