I was a little worried about this piece at its inception, but things tugged along nicely. It loses a bit of my intrigue around 1:50 through the repetition up until ~2:25, but thin the theme kind of sets in, albeit a little uncomfortably. Then, at 3:30, you're on your way to a lovely ending. I'm not particularly fond of your choice of notes for the solo cello. There are plenty of options regarding the tonal function. Even considering minor embellishments (Yeah, I know. It can be a hassle when working with MIDI) can add a little color or slight flavoring that makes it more worthy of standing alone.