I think I tend to agree with both of the previous commentors. I think it is a spectacular capture, but if I had some point of reference to indicate just how large this really was, it might be more impactful, but then again, perhaps this is why you chose not to add that element in the composition. Other than that it is a good mix of colors, especially since you were dealing with cloudy conditions.
Overall, I like the photo. You've managed to capture the ground, sky, water and the waves in a very good manner.
In other words, it flows so to speak.
Michael.