Hello,
It's pretty ambitious as you tried to create an atmosphere with big compositions in the beginning. I think the colors and the blinking slow flashes are way too bright, intense and omnipresent. At the same time, the pace, while being "correct" (in the sense that scene selection is good, synchro is present), pace is lacking in intensity, scenes are very static most of the time and overall it feels slow, when it should feel "heavy".
Other than that, it's a pretty neat work, it's clean and the atmosphere is easy to get into. Good job!