Well done. I like the light and the mystery. My only comment is that there seems to be a little bit of a halo around the sky from darkening it. You might want to refine the selection and/or back off on the darkening.
Love it! But I feel like the people(maybe just the two in front) detract from it. I WANT TO SEE AROUND THEM. Will you get a chance to go back and re-take the shot? I think a version sans people would have more impact.
I think I have another photo without the people. I will post that too when I will I arrive home. I thought this was more interesting.... it could be my own taste, I like shooting people. With a camera!