A quick and dirty practice from a tutorial. I watched this breakdown: https://www.blendernation.com/2021/09/26/made-a-simple-summer-swimming-pool-scene-in-blender-3-0-0/
And I thought, he did it in 3 hours, i can do it in 1 hour. And i could finish under 1 hour.
I know not all details make sense like the rounded tiles and more details could be added, but for a quick result this is fine. I learned also a new way to create cool water.