This is amazing work. I like how distinct the colors of different seasons are, especially summer and spring, which artists usually tend to do similarly. Will be buying today.
OMG yes it is, but how are you so fast, why is this epic: because it allow us Godot users to create terrains with this format and makes our lifes so much easier, thank you!
Here is the best explanation I've found for artists so far: Tileset: Provide complete Bitmasks reference textures for 2x2, 3x3 minimal, and 3x3 · Issue #3316 · godotengine/godot-docs