Like others have said before, the game needs a better tutorial - the text is way too small to be read, even when in fullscreen.
There are also some small bugs - the zooming-in and moving about with the keyboard is slow and keeps going, depending on how long you pressed the keys - even after you have stopped pressing them. Sometimes, the game places a tile when you want to select a different one.
It would be nice if the randomness of the tiles was changed - as in, you will have higher chances of farm tiles when you have a lot of meadow tiles already placed. Otherwise the game easily softlocks you out of winning when you never get the tiles you need. The random discoveries could also be better - as in larger biomes can spawn a discovery - this would incentivise putting together similar tiles.
Overall, a good game for just 72 hours of work :D