As you can see from the only feedback you've gotten, pacing and rhythm are hard to fine tune. I recommend you do not continue development over this prototype.
Give it a good ending (trophy, love) instead of a promise (hq, new areas).
The only thing I'd change is the inability to explore the fishing area before I unlock it. I'd love for players to be able to at least take a peek at the coast. It'd be a nice incentive.
Are you pretending to be japanese?
Start work on Lumber Camp 2. I'm looking forward to it.