It’s alright. However, I tried playing it through a few different sound fonts and it always came out as a typical MIDI-styled file, anyway. If you don’t mind working on it a bit more, you could remove the typical MIDI-ness of the song.
“You won’t get less MIDI-ness, it’s a MIDI after all.”
Oh, you would be surprised. A lot of MIDIs actually choose instruments that sound wrong under anything other than the creator’s default patchset, which is what makes a MIDI more MIDI-like when played on any other patchsets. There is at least one such instrument in this song (the very low panflute, I believe). The really good MIDIs are the one that use the right instruments for the right job – and the right effects, too, so it sounds even less MIDI-ish.
I mean heck, there are orchestral video game pieces out there rendered in such a way you’d never think it’s a MIDI.