The theme is represented in a really fun way, i enjoyed playing it a lot! I like how even though it's only 5 levels, they are still really challenging. One think that would be less frustrating for the player is to be able to restart your current level obviously, but I also like the decision to leave it that way, since it makes more sense for me - you have only 5 levels, so might as well make the player work hard to complete them, otherwise it would be just a 2 min gameplay.
Very well implemented. The game is polished, I didn't find any bugs. And for a first game, it's amazing, great work!