Nice game so far. I can give some of my suggestions, which might have been listed below, or you already have marked down:
- Upgrades for workers
- Priority sell improvemen
What I noted was that the wheat field is cleared, but the worker still does one operation to the field and back with no results. I also had a worker drop an empty box, which makes the game even slower.
Overall a nice game with a lot of potential. Will return with the next update.