I find coastal shots like this difficult without, usually, anything on the right side of the image to balance or counter the mass on the left.
In your case, it helps that there is a small but dark land mass at the horizon and a rock in the water, both at the right edge.
Of more concern to me is the lack of absolute whites and blacks anywhere in the image. Even the bright spots in the sky are gray. To me, the tone of the image is too dull, flat and uninteresting.
Roger