Hey man, I really love your style. I bought these thinking it had the 3x3 Godot tileset format, but it's kinda different. Can you elaborate on how you converted these into terrains? I was thinking more of this format: 
Just in case, I know my way around terrains and I'm creating procedural terrain, I just thought this format was included; I don't have time to accommodate a new format.
PS, I couldn't find the water 3x3 in the godot demo either.
Viewing post in Hana Caraka - Topdown Tileset comments
Never heard of the 3x3 Godot format before, this project uses the basic(?) Godot tileset system.
The image you included is a blob tileset (47 tiles), but mine is a Wang tileset (16 tiles). You can access the blob tileset (obsolete) at: Hana Caraka - Topdown Tileset\Version 2.0\
Animated tiles in Godot are quite different from static tiles, so I’d recommend checking out their official tutorial or documentation.