Very good over all. Now, let's nitpick...
Making it about "music" is a mistake. Yes, we hear and recognize and enjoy the music, but this isn't a live concert. We see lights and images, so why not make this about "light"? Same mistake Harmonious made saying it was about the music (among too many other things). It's "cinesational", so, make it about cinema, period. The music will follow.
The drones are a great touch, but too light of a touch. They could have been used more as a type of chapter title since sometimes the images on the fountains aren't the clear and I was left wondering, which movie is this? The drones could have telegraphed that better. Also, the drones only popped in a for a short second in a nearly static poses and then disappeared. Not really able to call this a "drone show."
Double down on the more popular music! They could have done "Dance Dance Dance" for a full five minutes hyping up the crowd with images from a whole bunch of movies.
Surprised the Minions got such a short segment.
The flow of the story was a bit scattered. E.g., you get the Mummy up front instead of being part of Universal Monster's section. It was a bit jarring to keep going back and forth from lightheartedness to monsters.
Fountains and lights were impressive. They could have uses the projections on the background buildings some more, tho.
Looking forward to seeing this in person some day.