I agree with H-P. I don't think there's anything inherently wrong with this photo. In this case, and contrary to the other comments I've given you in this gallery, the landscape format works very well here, and indeed emphasises the landscape-ness of the image. It looks like you were situated near a corner of a wall - would just add that the composition could be strengthened by having that corner (or some small part of it) in shot, but maybe not in the centre (where it would appear if we could extend the photo downwards...if you see what I mean). Hope this helps.
Hi, Nick I do not think that there is anything wrong with the shot - it is just very difficult to present a panoramic shot with a width of only 800 pixels. v. (by the way is I made out of a single shot or had you stitching a number of shots together?)