Aww I think that was adorable. I've never edited movies before so I can't give you much crit regarding them but there's a few things you might want to try and polish up.
1. Some of your blurs near the start last a little too long. Mainly when there's fast scene changes, nothing major so maybe you could just shorten it by 1-2 keyframes.
2. For me I didn't like the cross zoom transition at 0:18. I think a hardcut with a short zoom out(2-3 keyframes) would fit better. But it's up to you, you could try and if you don't like it, stick with the cross zoom.
3. The pan/scene sync FX around 0:19ish..doesn't quite fit with the beats, I think it would work without them. Just focus on the lyric sync rather than beat sync.
4. I didn't really like the flickering scene sync around 0:27 but I don't have any other suggestions for you atm so maybe just leave it. XD
5. 0:34 onwards is very nice scene selection-wise. Though you could try playing with some short zooms and light flashes to make the pacing faster and more dynamic for the chorus?
Hope that helps you :)