Michael A. Garman

Well typical timpani would not fit into your assigned notes, because the lowest drum goes D-A, and you have it on C. I also wonder about your voice crossings on the oboe/clarinet in measure 5. Other things, such as the trumpet being really low will make it sounds muddy, as well as the tuba being really low. There are a bunch of notational mistakes, like crescendos crossing ties and stem interaction, but I do realize that this is not by any means complete.

Look to develop the theme you start at the very beginning, because if you started out with it in so many voices, it should probably be important to a symphony... you can make a whole 15 minute movement out of just what you have.