Cute, unsubstatial, wanting.
The eraser to draw was a cute idea, it certainly makes the effect easier. Perhaps the effect could be made with a finer brush, and with transparency in mind. The rest of the animation was nice though being a quick little demonstration of skill(with the seed idea that was playing around in your head) it certainly hasn't much for content. Keep practicing, you have some talent to be unlocked in there.

The animation was kinda simple, but love the concept and the music synced up perfectly, i would love to see you do another video like this, and build upon the idea

that was awesome