This is a fantastic game! I love the idea of expanding your village and finding more resources; the hexagonal design is very reminiscent of Civilization, which is fitting here. I loved building more things, and especially once I got more happiness buildings, things took off quickly.
The difficulty scaling with food and water is pretty solid too; the only suggestion I have is that this game starts pretty slow, but after some happiness you get an abundance of resources. Maybe if the structures cost less and happiness had a lower effect on resource gains, the progression curve would feel better and more gradual.
Regardless, this is one of my favorites so far. Really great job!