id add more levels, you leave on the boat just to go to a new map. it would be really cool to arrive at a dock just when you think you make it and you have to keep playying. but on a new bigger farm with all new terrors and challenges. even addding a bunny to eat your bush if you dont get to it in time, or a bird that destroys your fishing rod. a boat breaking down animation. putter into a dock and as you slam into place your bag of money drops into the river and the crow tells you you something sad and cryptic like "oh man a new farm, looks like this one has critters too maybe there wont be any monsters. better get started before you rot in that hat cawh cawh cawh" and so on and so forth. further away patches and smaller buckets could extend play time.