Overall, a really good game.
I really like how you implemented the limitation into the art style and I really like the concept, it's a really original way of adding exploration in a game, without the necessity of making a massive open-world game like most games these days do to create a feeling of success when finding new areas. Usually, I play these games for a short period of time and may not be entirely excited, but yours was relaxing and fun to play.
I am really looking forward to seeing more work from you!