now exif info so i cant be sure but it looks like you were quite colse to the window and shot on a wide setting hence the verticals being as they are. way round that is to move back as far as you can then zoom in.
but in saying that, the verticals dont bother me...i would say the castle thro the window is a bit too saturated/vibrant colours compared to the window itself but that is me being Really picky, because as it stands, i really rather like it just so!!
wonderful shot!! lets have some more!!
ps. just had shifty look at your flickr stuff. cool and the gang matey!