below is the shader setups. based on Kent’s eevee enviroment nodes, had to make changes due having spherical objects instead just planes.
Sand, the unconnected socket below was experimenting different bumps.

ocean, same here some unconnected nodes due experimenting different looks.

far islands

cloud texture from unsplash by alex machado, blurred in photoshop to fit more in this project.

and compositing nodes.

how it looks from above. water necessarily didnt need to be transparent and certainly looks off from this angle
