Mike Schley city has a few images of "elves" with houses and bridges on top of trees, by putting several of these together, changing colors and inverting positions you can achieve something similar to your idea.

I was inspired by @HelenAA map and decided to give the style a chance to make a map for a friend's campaign. My first map with Pencil Sketch Overland - 2024.

Clouds , as usually, are from Alicya Faden OVerland.

Cheers

I occasionally use this idea (symbols in the sea with edge stripe) when I want corals and mountains in the sea. Keeping these icons obviously in the symbols and drawing a small landmass "hidden" below the Symbols.

And here with the Symbols sheet hidden.

If I want a larger Edge Striping or even another model, I create a LAND 2 sheet and add another one or change the effects.

Cheers

a monster sea monster 😅