The way I see it, iI don’t get it if it is close view or a distant one. Waves look like a close view of calm water. However closer mountains look like a distant view of deeply forested hills. (The mountains in the distant background look GREAT)
In any case, you might try modifying the texture of the closer mountains to show some big rocks with trees on top or something like that. More details.
As for tips, for distant trees you might want to use very simple models with deatailed textures.
Take care with the shores.
The overall image looks fantastic till now.