Pardon me for adding these 2 after the choice has been made!
Congratulations, Hans!
When I saw this thread I downloaded the file and did some postprocessing: one in BW (which is often a favorite of me for landscape) and one in color. And then I saw page 2 and the verdict. So I thought to add them just for fun.. I hope you don't mind.
When I saw the photo, the first thought I had was to create a bit of a Mount Doom effect in BW because of the light above the mountain.
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I wanted to keep the color version more natural looking and just accentuate some parts.
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Fun exercise! I am looking forward to the next one!
PS: And a beautiful photo to work with!