Lovely image Ian. One that I think works best when viewed on a large screen. I love that orange lichen and how it provides bright contrast to the dark water and rocks. That rock in the water complements the panoramic semi-circular form of the cliff very nicely.
I think your choice for the portion of the sky in the image - while seems unorthodox - works fine here. Maybe a tad more would work too, but I don’t feel it’s missing.
I love how your composition leads the eye along the curved form of the cliff, through the cliffs to the right, that tall cliff opposite your position and to the lighthouse - and then back into the bright part in the water and that huge rock / small island. Sort of a spiral path, and the round ripples in the middle strengthen that.
If I may suggest, I think cropping a bit from the right may enhance that spiral form.
(Posted mid-way by mistake, that’s the reason for the deleted critique)