Upload & Sell: Off
I like the BW (but that's why I generally only post there.) Was that done from the non-HDR version? If so, did you try converted the HDR file to black and white.
Between the two color versions I have to go with the non-HDR. I think the clouds look more realistic, and I don't mind the shadows. In the HDR version the city looks great, but the clouds to me look too weighty.
It's a great perspective - I'm guessing you'll be back there soon.