This is an excellent shot. Well seen and nicely composed.
My only criticism is that you placed the horizon essentially dead center in the frame.
Because the foreground has texture and is more interesting than the bald sky, I'd suggest cropping the shot horizontally at the midpoint of the sky. This will take the horizon out of the horizontal center of the frame and also put the person in approximately a thirds position which in my opinion, will strengthen the composition.
Robert