Really cool idea, I was able to get placing tiles and see my little lads moving around. I think this is actually really close to being something very fun.
The biggest issue like others mentioned, and you seem to be aware of already, is the lack of feedback. Specifically I would say it isn't super clear at the start where you can play tiles onto the board. Then the biggest one is that the villagers don't give an idea of what they are doing, or why they are doing it. I noticed my villagers going into the sandy beach I made, although I wasn't sure why they were doing it.
Once again, really impressive for 48 hours, it seems really close to being a neat "god-sim"