I like this photo, but do have a couple suggestions. I think it would have had more impact with a symetric composition (i.e. building corner line being dead center and straight). Sharpness is a problem here, not sure why (handheld maybe?). Finally, I would try Fuji Astia F 100 on this shot so as to give it a more saturated look (I think Provia or Velvia might not be able to handle the shadow/highlight difference).
This is a good shot though. I don't want my suggestions to come off as harsh criticism or anything.