agreed..
you should try to back up and use a longer lens, then apply the vertical shift ...
they look cool if i see them each in separate....but if you plan to do several, you have to converge the different PoV to get similar results, because in both sideways views the building looks tall, but in the second one, not so much....
and they will look a lot more distorted if you put people in the upper floors
and if you don't want to change the aspect ratio, try playing with the overscan script to give more space to the image, then adjust the lens
http://www.scriptspot.com/3ds-max/scripts/overscan it would be nice to see a render with some clouds now :D