I felt a little bad about retouching this already magnificant photo, but even gems can always use a little Photoshop work.
Here's what I did:
*Differential sharpening to bring out the person and details in the clouds
*Slight work on the individual blue and pimk hues
*Minor tightening of the histogram (i.e. Levels)
*Very gentle change of Curves
Hope you like it!