This was so much fun to play! I really enjoyed this :D One thing I would comment on would be to maybe add some music in the game to give it some immersion, other than that I didn't find any problems while playing :)
I don't know if you've heard of Game Development World Championship before (gdwc2019) but it's a competition for indie game developers where they can submit their games and it's free! It's great if you want some more visibility for the game and it only takes a couple of minutes to join :)