I found this by watching a new flash called "yes, yes anime" and you were listed in the credits and I must admit, I liked the music in the flash so I figured I would check it out.
The intro is escellent, beautiful in fact. The song seems to change its mood near the end giving it great diversity. A diverse feeling not found in classical music usually. And trust me, different is good. Original is good. :)
You did a good job at the quality of the sound and kept the file size reasonable at the same time.
For an improve as you say, I really think the effort is splindid. I am touched by this.
I have no real suggestions for you except keep playing, play what comes from the heart, and soul never give up on your dreams.
Thanks for sharing this. :) :) :) :) :)