Did you SERIOUSLY tag every judge in a newly made thread, when you are a level judge yourself and should know the rules well enough?? Anyways, with that out of the way, let's start reviewing!
Cube part (0:00 - 0:14) - Well, this part isn't that unique. The design isn't really good, it's too simple and the block designs are boring. The decorations are uncreative and I really don't recommend using those clouds in the sky because they fit better as foreground deco. I also suggest adding a nice custom-BG here. The gameplay is pretty nice and syncs to the music. The color combinations are decent and not messy, but very boring and could definitely been more interesting. There is no originality at all in this part.
Ball + Cube part (0:14 - 0:28) - It's mainly the same things here. The design is very boring, the block designs could either have been spiced a lot more with more types of blocks in general, or adding 3D lines would also have made it a lot better. Making the OBJ color darker would've been nice, and I would also recommend making the BG darker so it doesn't look so empty. I do not recommend using that square deco for the jump pads, and the portal at 0:14 looks very weird with that square deco. Either remove it or make the portal more in the middle of the deco. The invisible slope at 0:27 wasn't the best idea. I would recommend a jump pad here instead. The gameplay here is pretty fun and it fits a lot to the music well done! The part is not original.
Ship + UFO Part (0:28 - 0:42) - This part has pretty nice gameplay, not too boring and it varies some gamemodes. However, I think adding more blocks instead of just some pillars here and there and sawblades would've made the gameplay a lot more interesting. This is also a thing in terms of design. This part is very uninteresting and boring because of the unoriginal deco, but also because it feels rather empty. There is only sawblades and some copied and pasted pillars, adding more block forms and unique and original block designs would've made the part a lot better. Also if you're adding sawblades, make sure to not copy+paste them with the same size over the entire part. I like that you have these sparks in the background, but the custom-BG could've been made a lot more detailed and unique. The part is very synced to the music, but not that original, I liked the block designs though!
Robot Part (0:42 - 0:56) - I don't like the design much here. The block designs are the same as you've used previously in the level, and the deco is uncreative and boring. VARIATIONS is something you need to work on. The color combinations are pretty bad, try not using so much white. I still liked that you had these color flashes synced to the music though
The gameplay isn't something special, but at least it's synced to the music and fair.
Wave part (0:56 - end) - The ending is very rushed as you mentioned and that doesn't help to the level unfortunately. The design isn't very good here, the block designs are cool, but there is almost no deco in the background to support it. Also the sawblades are copied+pasted awkwardly at 0:59 and the chains are also copied+pasted throughout the entire part. The gameplay is rather nice, but please make the speed changes visible.
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Gameplay: Very nice! It synced to the music greatly, and I really enjoyed playing it. There are some speed changes at the end, and it could've been made more interesting, but it's good.
Design: Design needs work. Your biggest problem is that the block designs are very boring and could've been made a lot more interesting, and you need to add more variations to both block design and concept. More custom-BG's would also have made the level a lot better.
Originality: Hardly original at all. The block designs at 0:28 - 0:42 were kinda cool, but even them I've seen before.
Music Sync: Very nice job here, you've synced the entire level to the music.
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Level Mod Suggestion: 
- No Feature + Stars---------------------------------------------------------------------------------------------------------------------------------------------------
DECENT
3 or 
. Belongs in Decent. Just try decorating more next Time, and being more original, and then you´re good. 