The best thing about your footage IMO is what you were actually filming, interesting stuff. Now outside of that I think you could benefit from a constant aperture lens if you do a lot of zooming during shots. Also some shots were under/over exposed which is something we al deal with but overall pretty good.
The most annoying thing really though was the music was too LOUD, I mean it's borderline clipping loud to the point it's distorted.
So adjust your music levels, have someone in the future bounce light on your subject or film during a different time of the day.
