Weaving the ocean is something I attempt periodically on purpose yet it also makes its way into my other weaving projects subconsciously. The colors vary so much - so many different blues and greens, even gray and purple, depending on the ocean, sun, clouds, and weather.
My 'favorite' ocean is the Pacific around the Hawaiian Islands - the source of the photos below which I use often for inspiration, not to mention relaxation.



The photos (below) are from a project intended to weave the ocean and all the different colors within it. There are the expected blues but also greens and grays..
The fibers are primarily cottons although there are a couple of rayon threads in there. I added those since they are a bit more shiny than the cottons, thus invoking the sunshine reflecting off the water.
I like the cottons since they are not shiny - they are for representing the waters that run deep, through which you can see and in which you know are dwelling creatures and many forms of life.

Both of these show the colors of the warp nicely as I used plain weave for the structure.


The third photo shows how a twill weave pattern can mimic the waves and currents. Using different sizes of yarns, some moving together, some separately, a basic twill looks very complicated.
This twill closeup is of my favorite scarf, I often wear it. It's been in the washer and dryer many times and still looks good.
I love it when that happens (since that's not always the case).