The edge between the sky and mountains is very sharp (just caught my eye right off the bat). I enjoy the colors but a little more depth out of the lighter hues would be nice. You might want to hide the fact you were in a car by clipping/sharpening the bottom of the shot...
This is a stunning image.
Favouriting.
P.s., just by browsing, I see that the rest of your gallery is wonderful as well - can't wait to see more from you.