So, at the risk of being boring, I decided to rework this image from the original, cropped DNG. Sarting in LR4, all settings were set to default. If it isn't mentioned, the setting remains at LR4 default. I then moved to PS CS6. So here's the sequence following all the prior suggestions:
LR4:WB upped from 4900 (camera's choice) to 5500 (thanks W Walker), contrast +30, highlights, shadows, and whites all set to +75, blacks decreased to -35 (Thanks RG). This basically "spread" out the histogram. Red, orange, and yellow saturation were set to +35 and aqua HUE at +35. Sharpening settings were amount 50, radius 1, detail 50, masking 90. Noise reduction settings were luminance 50, detail 50, contrast 0, color 50, and detail 50. Nothing else was adjusted and then I edited in CS6.
CS6: First I spotted out some distracting mailboxes. High pass sharpening at 3 pixels was applied through a mask only to the earth. A SEP2 (full contrast and structure) layer was added with "luminosity" blend mode, 100% opacity/fill. Then I spotted out dust (just a couple). With a Hue Saturation layer, I bumped red saturation +20, yellow saturation +15 and lightness -5; all other settings were 0. I then applied unsharp mask (100, 0.8, 0) only to the earth (no sky). Then I signed it!
I think it addresses Slobodan's concern about the cyan overtones of the sky (Thanks SB). The SEP2 luminosity blend added tonal variations to the sky (Thanks, Chrisc). I appreciate all of your suggestions as I learned a couple new things and gained the perspective of seeing through your eyes.