I'm posting Artificial Lakes biome! I tried to make it waried with different feature types. Some hexes here are labeled as canal. What I had in mind for this hex, is that it's treated as Depth 1 river for vehicles and infantry and other small units, while big walker units can simply move over it without any penalties, treating it as a normal empty hex. If you are planning to use different types of units in your forces, I think it would be a cool addition!