I realize this is a game jam and it's a lot to ask of people to make a game in only a week, especially between work, obligations, and so forth; but right now, what you have is less a game and more of a simulator. That isn't necessarily bad, but if you compare it to something like Townscaper or original Minecraft, there just isn't much for me as the player to do besides Tetris together pieces in a way that's aesthetically pleasing; and even then, my options are limited.
From a technical perspective, I admire the skill it took to actually make this work. I know from my own experience that creating such an algorithm isn't easy. Not sure if you used wave-function collapse or something similar. What you've made looks fantastic, though, and it all works seamlessly. I like how all the terrain grows out from the ground and the art style is very cute.
This was actually one of the entries I was interested to try, as the screenshots reminded me of Bad North. I feel like if you keep going with it, either adding more tiles or some problem to overcome, you'll have the basis for a really great game. Best of luck to you.