Somehow, your approach of leaving one side of the frame (apparently) empty and unbalanced, so to speak, works wonders. I hope I expressed myself in the right way.
The left hand side occupies half of the frame, and includes only sea and sky; most people would swing the camera to the right to get a more balanced composition, with more cliffs.
Thing is, the sea and sky on the left holds on its own; the sky even looks like an Aurora Borealis in B&W.