Alright, let´s do this.
Cube Part(0:06-0:22):
Alright, so the Level starts off with some very simple Block Design, rather messy Deco in some Places, but a whole ton of variation. What I like about this Part is not only the pretty great Gameplay, but also the incredible Music Sync. Which is a Thing you managed to do really nicely throughout almost the entire Level and the Way you used Triggers to create nice Effects and make the Level feel really alive! On the other Side, some of the Design looks strage and clustered together, and there is a bit of Color Contrast in the colors like White and Grey/Black, and there are certain Things like the...hanging Black Slopes on the ceiling that are too much of an Eye Catch, and they´re a bit distractiong, hence I suggest lowering their Opacity. Whenever you´re trying to use Glow, you should also try spacing it out a little more and expanding the Sections to make it look more fluent, if you know what I mean. (You probably don´t, I´m horrible at explaining.) Overall though, this Part was still pretty good.
Form Changing Part(0:23-0:37)
Wow, nice Custom BG! I like the Way this perfectly fits the Song, it creates a nice Atmosphere. Now, the huge Counterside of this Part is that it´s so messy. So many Decorations are out of Place, the Colors keep contrasting with each other and you used sooooooo many different Types of Blocks that it looked like you tried to put 10 Levels in one, and it just really didn´t look good. Regarding the Gameplay, at some Points the Player was unaware of what to do, because Objects literally spawned just as you approach them, and most of the Time too late to react for an actual Player. It just all wasn´t that good, really.
Wave Part(0:38-0:42):
Ok, I have to give you this Part looks great. It creates an Atmosphere of like a City at Night, and the Lights were nicely synced to the Music. The rotated Sqaure Blocks do look playily Copy + Pasted though, I would have liked to see some more Variation there, but as simple Obstacles they don´t look too out of Place. One Thing I generally noticed though, is that this Part does look quite a bit like Takeoff in a different Shade of Color. Now, looking at how old this Level is I´m not gonna roast it for that, but it is a bit suspicious.
...some Parts(0:43-0:52):
Oh. No. The Colors. Please, Cyan on Purple never looks good. Especially on these Platforms, the Contrast is eye-hurting. Ugh. As for the Cube, it´s better, but a too monochrome Tone. It´s almost all black and grey, which can look good, but not in this Way of trying to design. There is also barely any Deco besides Cogs like...everywhere. In the Ship, the Hold Thing is a nice Idea, but I doubt most People will be able to read it in Time. (Atleast I wasn´t.) Overall, this Part really is one of the worse of the Level, but the laters are better.
Space Parts...I guess?(0:53-End)
Alright, the final Parts. And I have to admit, they look good. The Colors finally went in Harmony with each other, the Custom BG is nice to look at, and the Gameplay is really good. Plus, this fits the Song really well. My only complaint is that this looks a lot different from the Rest of the Level, and there could have been like a better "Transition" to there, but it still looks really good, don´t worry. Overall, I´d go out so far and say this was the best Part of the Level, I can´t find much to say here, other than it was good.
Onto the Scores!
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Gameplay: 15.6/20
I think overall it´s pretty solid, just try to make sure the Player has enough Reaction Time to see everything coming and can react in Time, and from this on, I think you´ll be very good.
Design and Deco: 12.4/20
In most Parts, it was very messy and contrasting, there was also barely any real Deco for the most Part, and I think you need to do some Color Studies, and very important ask for Opinions and Feedback. I´m prtty sure that´ll help you improve a lot. Oh and try to keep the Level centered around a certain Style. Variations = Yes. Completely changing the Level up = No.
Flow/Music Sync: 8.7/10
This was really great, throughout basically all of the Level. Not much to say here, it was really enjoyable! Just try to improve on Flow a bit.
Originality: x1.02
Hmm...I guess I´ll give you a slight Boost here, it´s nothing I´ve really straight seen like this before, but I do recognize some Things already.
Score: 37.434/60 or 6.239/10, 5 
. Belongs into mid-high Decent. I feel you have a lot of Potential for sure! 
Moving.
PS:
Breakfast Flake why´d you give this a so high Score if you´re already going to give it decent?...
Moving.