Yes, it is beautiful. And I’d like to see it get the little finishing touches that it deserves, even though that means more work.
Let’s not dismiss the potential commercial value as a demo of … beauty. The setting makes you feel relaxed; the power of computer animation is realized (a la Fantasia); and you watch it and just enjoy it the first time. Then you start to lean a little closer to the screen … maybe on the second or the third run-through … and you start to study her movements, her posture and her expression as she plays. … :o She’s really playing it! … :o …
Yet, she is absorbed in the moment and in the music, and she invites the viewer (no matter how critical and academic the viewer may try to be while be viewing it) to do the same. That’s the magic. So if it’s got “magic,” and if every little detail of that performance also “rings true” technically, then it’s gonna have a very strong impact upon anybody. What better demo could you hope to have?
Alas, the animation is going to have to be synchronized, precisely frame-by-frame, to the music. Every nuance of the phrasing is going to have to be matched in a convincing manner by the performer.