It's an interesting shot, and the composition seems right. However, was it perhaps taken with a wide angle lens (a focal length well below 30mm if a full-frame camera)? The buildings on the left seem to be leaning in at the top while the ground floor window on the far right looks vertical - which hints at the perspective issues I associate with wide angle shots. It may be you can reduce the issue by changing the rotation of the entire photo by a one or two degrees, so that the centre is straight.