The blue of the sky with the orangey-yellow reflection on the building is lovely. I would try to clone out the electric lines and crop (or clone out) that dark patch on the extreme right of the photo. A little neat image and some sharpening would work wonders here I think. Your portfolio is very nice indeed, so I felt like a little constructive criticism would be ok here! Well done on taking the shot that others would perhaps not see.
Thanks for the comments, Sharon. I think you're right about the sharpening, but I think the wires are essential and don't bother me a bit. Gives it more of a "rooftop" feel.