Etude 2: A study in song length, flow, and variation.

I won't give you a wall of text to read, so here's a brief explanation.
My first etude was made with a different software, so I can't post it here, but here's a link to a recording.
http://www.punk-o-matic.net/custompages/POMAudioPlayer/POMAudioPlayer.h…
That was just a song. Bassoon, cello, violin and the like.
I'm trying to build on some of the faults I found in that. Criticism is very welcome.