Hey AbsenceV,
I regret to tell you that, for now, I'll be rejecting your map.
The theme is original, as we don't have any maps like this one yet. The build is just great. The organics are really good and I can see that you put a lot of effort into building this. You did a great job, it might actually be one of my favourite map builds I've seen on Manacube so far! The parkour is the main issue. Most part of the parkour fits the hard difficulty, some jumps are more catered for the medium difficulty, and a few jumps fit the expert difficulty (especially the first jump) better. You could make the parkour much harder and resubmit it as an expert, or try to keep the difficulty consistent at hard, rather than having some expert and some medium jumps (if you would resubmit it as a hard map the parkour would need some shortening!). You did use nice block variety which is good, but the parkour feels quite grouped. By this, I mean that there would be a sequence of some ladders, then pane jumps, then fences etc. This can make your map a bit repetitive to do. Try to mix up the jumps a bit more to make it more enjoyable!
I strongly encourage you to resubmit this map once you've improved the parkour!
Have a great day,
Sil