Hey. Welcome aboard!
Been listening through. Chord progression is good for a first time and ranges (I think) are in order, so firstly well done! Just opinion now: the piece does get a bit boring at first with the staccato, though maybe that's the crappy midi file. Any chance you uploading a Finale file or something like that?
There's some good ideas in there. Liked the way the opening idea was brought back again in the middle of the piece, slightly developed. If you could get that into Finale, add some dynamics and stuff, I think you'll have a good composition in hand.