Pretty good.
It was unusual, the graphics were fine, the animation was OK too, but a little too much tweening for my tastes. Yet you explained that this was tweening practice, so it doesn't really matter. I voted 5 just to get the score up by a little bit, as even though there's nothing fantastic about it, it was pleasing to watch, and the music was good too.
In short, it was-
Relaxing
Unusual
Different
Enjoyable
Well made.
Good job. It's nice to see something different once in a while, and I do hope that you make a series out of this.