Why not paint a tileset ? Well. I took some big learnings out of this one.
1. I need a good shapeguide.
2. I need to adhere to the shape
3. I need way more tiles than I imagined (like 4x4 or 1x2 etc. Just different 1x1s at different heights are only a third of what a decent landscape might need)
Might split surfaces and walls in the next try.
Also Godot threw 700 errors because I made them overlap. Compiler didnt support my artistic vision properly.