For a first game, this was really fun! The level design was pretty good, you do lose a lot of progress when dying in the second level though. Another thing I would say is that the character's controls are very slippery when jumping, it makes the platforming a little difficult. I think the game crashes at the end of the second level, or is there just nothing past that point?
Although it doesn't really fit the theme at all, I still had fun with this. Looking forward to see what you make next!