Knowing to create MIDI file is a powerful tool, but you can go further with them and I would like to help you. Let me explain. I can make your MIDI files sound real and beautiful with my library of high quality Virtual Instruments.
I've been working professionally with MIDI's since 2008 (but I've been using midi since I was a kid). I use the "pimped" MIDI's all the time, for example to show my clients the preview versions of my compositions, arrangements, etc, or even when they tell me they would need some playbacks. You even can use them to listen to your composition homework.
In order to make this gig I would need your MIDI with instruments/parts separated per channel. Ask me for the price before startarting the project.