Upload & Sell: Off
I have quite a few more images that I plan on processing. Here are three more that I think came out better than the first one I posted. Fortunately I have plenty of raw material to work with. I am finding that even subtle changes in the lighting can make processing for this scene either much more difficult or easier. Anyway, with some of the pointers you folks have given me, I think I am heading in the right direction.
I think you've found your answer.
This thread's original images is, IMO, a 'no hoper' that was never going to look good. Too much haze, flat lighting, and no real subject or compositional theme.
In my experience, if an image doesn't start to 'pop' after 20 seconds of PP (adjusting the black and white points, rough crop of any dead space) it's never gong to amount to much. HDR, 'Scotty, I need more saturation!,' and other PP thrashing seldom help. When this happens (I'm all too familiar with the sinking sensation!), I give it some though, make some mental notes, and move on to the next file.