Thanks again to everyone!
Since I'm working to other parts of the game I didn't spend much time on the water (although I will eventually finish it)
@milokey I will give a try, I have to see how thing works out
@probo @R1k I don't want to use gradients. I like the aesthetics of pixel art and I don't fell like using a tons of colours. I like the strikes of light penetrating the surface but I can't use them because I need the water to be tileable
I tried VERY quickly to add some light under the surface here is the result:

It will be fun/a pain to animate accordingly AND seamlessly
