In general I thought the sounds were pretty well put together. Because it's a montage, I found it a little difficult to come up with specific observations because things kept changing so fast. There must have been at least 6-7 songs in there, so it was hard to keep up. Maybe develop a full song and ask for feedback on that. Just a thought.
But what I can pull together is... The vocals sound real tight. Well performed, good harmonies. Some times the bass seemed a bit strong. I'm listening on very cheap headphones and they shook at times. Trying to imagine what good stereo speakers would do. There was a synth part or two that seems slightly abrasive sounding.
