Awesome, thank you.
Ahh, I know what you mean now with the "progress bar". Instead of the arrow up or down, a bar that will show how much in negative or positive you are while harvesting carrots or resources - I like the idea, its good.
The color swap and new tile types were planned from the beginning, but we cut it to make the first few levels ready for playtesting. We will definately add new types of tiles and as you say, water and hills and other different types. It will require a bit more work before we go there.
The idea of making restrictions are nice. I think it would be more effective once we add more types of buildings :)
I tested your game :) That was super interesting to see, and it really got me going and thinking :) Thank you so much for sharing that game with me.