Macario ... easy tiger ... easy
I think the biggest problem is that your foreground is completely overcome by shadows ... a visible foreground might of brought some interest in your image.
Other than that, is a very nicely framed picture,
with straight horizon - not really
.
I like how you have the rocky portion between your foreground and horizon line.
The only thing missing is a subject, something to focus on. My guess is that your attention was more on the waves that are breaking against the rocky shore. Maybe a bigger wave with more splash and more light on your rocks would sparkle some more interest from some ...
Don't get discouraged ... keep on trying
.