I generally don't care for really short stuff, but this was really quite impressive. It didn't make me think of a playground. It made me think of a casual video game. It could be used in like a Mario cut scene. They don't have that much plot. Maybe it could appear on a loading screen.
I really do appreciate how graceful this is. You didn't have to be fancy or anything. You just showed devotion to what you really cared about. A 4.99?! Okay, now THAT'S the highest score I've ever seen.