When you take photos like this, try two differences exposures. The sea with its ways smashing against the rocks, BEAUTIFULL! The sky, and especially the mountain at the right side, get a little bit to light. Try one more exposure with a slower shutterspeed so the sky and the mountain appear more dramatic, and add that on top of the image with the slower shutterspeed, making the waves appear the way they did here. 6
This is my own personal voting scale. It's merely an huble opinion, based on whatever limited photography knowledge I have. You have all right to agree/disagree with me.