I'm just starting out on this forum also forgive me if I am not familiar with any customs towards how to approach giving comments/feedback.
I love the playfulness of the piece during just the first part of the piece (around 2:30). I also enjoy the obvious tension chosen to show an intimacy of two young/fresh lovers in the very opening where the richer middle section of the strings play out.
There are a few spots where the dynamics blend well through playback, but wouldn't make much sense during a performance.
Also, this is quite the raunchy story in variation two (which is obviously appropriate to explain the steps of the variation but still).
Hope I helped in some sort of way