I think it would be tons helpful if we had a few additional assets added (trees, plants, maybe some new ground types) which, in sum with every other we have, could allow for further diversification.
Like for example you could create:
- a new type of mild temperature forest with less hills, but more diverse trees
- a new snowy hills area, where trees are scarce, but elevation is high
- a new sub biome called oasis, where it sits somewhere in the desert, but has some lush plants, water and a couple trees
- a new sub biome called forest clearing, where it would be a big flat space with only grass and plants
We could go on and on, but i would love to have some kind of mechanic to define which biomes can be next to which, like snow can be only adjacent to forest and wasteland, desert can be next to forest and burnt, etc.