staircase

...seen in Vienna

Well done. Interesting use of shapes. Technically, it is well managed. Most cameras and photographers would create/allow a diverging distortion of perspective with a vertical architectural shot spanning 7 floors. Keeping the parallel lines parallel and vertical is difficult with 35mm or similar cameras. How far from the subject building were you? Did you manipulate the image either in-camera, or after-capture to insure the verticality of perspective?

Original capture. Strong composition

Very nice. I did something similar recently, my color differences were done using different white balances within my raw conversion:

http://www.photo.net/photodb/photo?photo_id=5361253