[Faheria_LAT3]

Fai:

The problem with how you're doing your hills is that not everything in your tileset has the same, or any, light source, so it will be hard to tell if the hill is going down or up. Like if you look at your Windows stuff, the light source is coming from top left giving everything that isnt pressed down a light area on the top left, and when its down, it gets darker there, because its in a shadow. I dont think you want to go back and change everything around though, so I think you should go with normal graalish cliffs. They'd match your cartoonier tileset better too.