Wow nice!

I see a perspective problem. I'll try to explain:
Supposing this is viewed from not much more than human height, and judging from plant/tree sizes, those are not very far (5-10 m at most) then:
1- the waves look like downscaled models from real-size waves;
2- the middle ground coast line is either too low on the horizon relatively to its distance as judged by atmospheric perspective, or too blue for its small distance and size.
If the idea is that this is a small cove as I think it is, you should create more distance between it and the mid ground coast, with more linear / vertically compressed detail, including the coast line. Also maybe 'zoom in' into the close waves and sand.
I tried to find a suitable ref image but couldn't find one close enough. Insert random beach pic

What about the low cloud on the water? Is that fog?