You might want to work on the transitions a little more next time, it looks really ugly how you just cut to the next replay.
Next time try to pick shader colors that fit more to the song. The song itself was pretty happy, but most of the shaders looked really dark.
The "Stay with me" part was waaay too long imo.
The camera felt really jerky too, it sometimes got way too close to the players and ended up having this second of seeing neither of the players.
Also the effects looks pretty weird as well, next time try sticking to flash or glow effects instead of effects that change the contrast.