Jim, I gave you this piece on purpose;) It started your piano technique engine. Great job!
Now for another piano tricks it would be nice for you to learn:
Fav Classics 2 Hallelujah, Bach Bouree and In the hall of the mountain king
Chords, staccato and right/left hands dialog will be very helpful for you!
Keep practicing Circus Rug, but not very often. Let your hands to relax a little.
Back to the Mozart