Okay so I played this map and (to my surprise) fairly comfortably passed, even though I miserably failed at several points of the maps (I'll talk about it later). I don't think this should be this easy to pass, and someone like me shouldn't be able to. I'd suggest to raise the HP drain a lot, probably to at least 8. This has no incidence on star rating, but I think it would make the map less forgiving and more interesting.
This map was fun. Really really hard, but fun.
I just have a few things to point out. In general, I dislike the use of 1/4 in this, which I find unintuitive (it might be me misreading or being unable to play this BPM, but I thought I'd give you this feedback). Talking about the hardest diff:
00:53:493 (1,2) - 00:57:857 (1,2) - 01:48:039 (1,2) - 01:51:584 (2,3) - 01:52:402 (1,2) - 03:02:493 (2,3) - for every pattern like this, although I understand what you're doing with the 3/4, I think a single 1/1 slider would play better. There's barely any 3/4 in the entire diff and I find them quite surprising and fairly annoying to play
01:01:130 (1) - 03:07:675 (1) - Those slowdowns always screwed me over because I didn't expect them, I think you should give those sliders a special shape to try to make them stand out more
01:14:220 (1,3) - 02:04:948 (1,2) - really really dislike this, you do not need this kind of gimmick in this map. The whole map is quite easy to read, so this stands out in a bad way
01:48:993 (1,2,3) - 01:51:175 (4,5,1) - 02:01:266 (2,3,4) - for the sake of consistency with the rest of the map and of movement, I think you should stack them and leave the unstacked streams to longer ones, this was surprising in the middle of the jumps (01:55:811 (2,3,4) - you can leave this one unstacked, as it goes with the following stream)
02:04:948 (1,2,3,4,1) - this was really confusing, I thought the slider ended on a blue tick and the stream started on the white one which is what I read from the spacing, I think you should keep the spacing consistent on that stream to avoid that kind of misreadings
02:06:720 (1,2,3,4,1,2,3,4,5,6,7,8,9) - I completely failed on that stream, the movement is really weird and unintuitive, I can't think of anything off the top of my head but I think you should change this to make it play better
02:12:584 (1,2,3,4) - too big D:
02:14:220 (1,2,3,4,1,2,3,4,1,2,3,4,5,1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4,1,2,1) - if this is what the map was unranked for I disagree, I SS'd this part and I didn't find it too difficult even though my aim is absolutely atrocious, it plays well and the patterns are intuitive enough, if anything the 1/4 sliderjumps through the map should be nerfed, but not the jump sections like this
02:22:402 (1,2,3,4) - this really really really needs to be nerfed
03:00:039 (1,2) - 03:04:402 (1,2) - make this 3/4+circle circle or 1/1+circle if you fixed my suggestion above for consistency !
My personal opinions on the map are that it's overmapped (yes) but it's not detrimental to it. The 1/4 jumps however feel overdone and I think they should be nerfed. Definitely a map I would find myself playing again, especially for the practice value.
Good luck getting this reranked, it's a decently fun map, I'm not too fond of the way it's made (inconsistencies and lack of structure but it's your choice) but it's definitely worth playing. Don't kd this, it's just an unorganize thoughts dump.