Nice work, this is a great start. The first level is very difficult, I was not able to get to the candle after probably 10-15 tries. Part of it is good, the level design is really interesting, the level of challenge is very high due to the layout of jumps enemies. Part of it is frustrating because the enemy art is much smaller than where the collisions occur, this makes is really hard to time jumps and gets frustrating because the difficulty level is already high, so it slows down the experience. Try to make sure the art reaches all the way to the edges of the sprite boxes as much as possible. You can make the sprites smaller and change the size in the code.