Well as promised here is a review!
The build of this map is sadly below the standards of Manacube mapping, it does not have enough details and is too close to pixel art. Try using multiple blocks on one surface to improve texturing, but I also suggest picking a different theme; this one is quite difficult to build with much detail, as it is inherently quite heavy on pixels. Most maps nowadays use an organic as their theme, this is easier to build and texture well. For an insane, I also highly recommend making the build much larger, this makes pathing without sharp corners much easier to do, and all the parkour will be on or inside the map, instead of floating in the air.
As I just mentioned, try to make your gameplay more incorporated to the build, you can build it around or inside it, but leaving it floating is generally unacceptable.
The parkour is very difficult for Manacube and does not flow at all, it generally feels unsatisfying to play. You mentioned the map having 180 degree turns, this is not allowed on Manacube if I recall correctly, because they are impossible to use with the flow being preserved.
Although the difficulty of the map allows it to have quite a decent variety of jumps, it is far from standards, try making more usage of blocks such as water, minecarts, and flower pots to increase diversity among jumps. This will also make it easier to have the parkour flow!
The pathing is not great either, making many turns and twists which would be deemed unnecessary and annoying; a more straightforward pathing works better. You mentioned the impossibility of Insane maps having flowing parkour, this is far from the truth, for inspiration on how to make flowing parkour on an Insane difficulty, you can look at maps such as Radiance or CatBus.
For enhancing the diversity of jumps and making the overall experience more enjoyable, you can also take a look at maps like Chutes, Split, or CSGOTrain.
Kind regards, Chimakivic
