I created this test ocean in blender. Any ideas how to make it look better? Except video resolution
maybe make the water a bit more white at the top of the waves?
kinda like this: https://i.ytimg.com/vi/tojD1kzr3Ro/maxresdefault.jpg
although this is not really realistic.
Also underwater view
Needs some foam.
Also the underwater one seems to be lacking a sun and caustics. Look at more reference and try to recreate the lighting conditions from the reference 1 by 1.