Hi Mark,
That’s a fine panorama.
My suggestion: I think the sky needs a bit of work to bring up the detail and contrast in the clouds a bit more. It’s flat at present. But you need to do this by working on the sky only because the white/light colour buildings are already overexposed and may get blown totally.
Best wishes.
Looks good on the flickr page in large size. You can pick out much more detail ! Agree with other posters though that the white buildings seem to be blown slightly whilst the sky is quite low contrast. A few graduated filters applied in either PS or LR might help.