This was a fun image to edit. I looked at it and decided I wanted to highlight the mercury-lamp-orange glow that cities emit. But I also wanted the sky to feel cool, which would be a difficult balance with the clouds. Then I decided that even though I wanted the city to glow orange, I wanted the Space Needle to stand out and be bright, drawing attention to itself in the image. So accomplishing all that wasn't super easy.
First I opened the DNG and corrected the horizon by using the bubble level tool on the central skyscraper's right side. After that, I adjusted sliders to capture as many of the tones and contrast enhancements as I could.
After opening it in Photoshop, I first copied a layer and set the new layer to Luminosity. Then I changed it to black and white and adjusted the sliders to control the lighting a bit more. This did a lot to control the light difference between the skyline and Space Needle as the space needle is a yellow light compared to the city's orange-red light. But it made the Space Needle too light and a lot of the details, like the under-saucer ribbing and shape of the above-saucer roof, were lost to wash-out. So I used the auto mask (15, non-contiguous) to mask out the orange of the skyline by selecting one of the buildings in the background with a tone about in the middle of what I wanted to remove. I feathered it wit ha radius of 3 to take out the jagged edges and deleted that area from the black and white layer.
Then I inserted a gradient layer, blue on top and orange on the bottom. This took the lightness off of the space needle's blown-out areas when I set the gradient's transparency to 10% and soft light.
I elected to go with a 6X7 crop to remove some of the extraneous elements on the right and far left side. I framed it so that the Space Needle would be on the left Rule of Thirds vertical and the skyline would be below the top Rule or Thirds horizontal.