Greetings,
This is a very interesting work. In my opinion (I'm sure others will disagree with me), there seemed to be too much thematic material. A lot of your ideas seemed to start and stop too soon. I began to lose interest as soon as the piece began to slow down; I do apologize for this statement, I hope it doesn't offend or discourage you. The slow section just seemed to cluttered to my ears. I wasn't really sure what instruments were playing the main thematic material until the Alto Saxophone solo began. The slower section was just too short for me and I had wish you explored more instrumental colors. As the final fast section begins, you indicate the with the tempo marking "Happy" and yet the musical material that begins this section sounds very minor to me. Again, this fast section stops way too soon. You really need to explore your ideas a bit more. In the final slow section, you need to add a bit more accompaniment instead of having the lower sounding instruments play some stagnant material. This section also ends just as it is beginning. Throughout the piece, you tend to harmonize the main melody and not really add much of anything else. I would have really enjoyed more colors throughout this piece instead of having most of the instruments play the same thing...only harmonized. All-in-all, I think you could really work on orchestration and adding more color to your compositions. You have some interesting material throughout this composition, but nothing really seems to jump out to me specifically. I strongly encourage you to continue your music education and compose more music, you display much promise. :)
Peace,
C.L. Winston