[Other Question] How to complete these tiles?

[Fates]

I made another thread showing how to build the water tiles, and no one had responded, and I still don't know how, this is very confusing for me, and I don't know how to complete these either:

 

[Pokeminer20]

Those two tiles in the tileset selector next to the sideways cave entrances, those are your answers

 

[Fates]

In that way? I don't know if it turned out right, I'm still very confused.