Hey guys,

I'm working on a new campaign that takes place on a large island floating through space - the idea being that this island is the little bit of land magicly preserved after a cataclysm destroyed the globe. Part of this land contains a large sea that spills off the edge of the land into a giant waterfall.

So a few questions-

How do I handle the coastline of this land if there isn't a sea as much as a drop off into space, and what sort of coloration would make sense for this?

How can I create a convincing waterfall off the edge of the land in a hand drawn aesthetic?

I'm using gimp btw
Thanks!