This is really unique and the hand drawn art looks amazing, I love that the obstacles grow flowers rather than just being destroyed, that's a nice touch and fits with the general themes of the game.
I think some more polish and feedback with animation/sound for when you hit the obstacles/power ups would really bring this to life. You could have some sort of voiceover or maybe gap in the obstacles so the player can properly read the text, that feature is unlike other submissions and a great addition.
Regardless of the time well done!