This has got to be the most gorgeous thing I've seen in a very long time The level of detail here is phenomenal, especially along the water and waves, then on Jrain...!
I also love what you did with the lighting, especially underwater. Those rays just really make the scene's beauty, along with the mix of shadows. The fishes are a nice add to it as well, making the sea feel a lot less lonely ^^

It's an honest shame someone who is capable of such a piece to have so little attention here. But you have definitely earned my watch by this beauty alone Astounding job Kaarhai!