You got snow and swamp customizations mixed in the game script. Also, I think you should add some kind of info on what the upgrades do - it's self explainatory for the most part, but at some point my fish yield decreased and I thought the game was bugged until I read your answer on fish population in the comments. I upgraded it before but saw no difference whatsoever so I disregarded it completely. Ability to rotate the camera around the diorama would be great too. Otherwise the game is very comfy and looks good. I hope you find this feedback helpful!