Are you looking for some specific feedback about the orchestration, notation for some instruments or something like this, or do you want a plain opinion without much depth? I'm afraid my experience in orchestration and composing for orchestra is still very limited so I cannot be of much help there (other people here surely can).
Regarding the piece as-is, it's good. I specially like the timpani and I don't really see anything that didn't convince me. It's a short, simple and solid piece. Congrats!