Hi Nymph here and request from my queue.
General:
seems nothing, only thing I notice is the letterbox is not opened on the collab diff, although you got a sb in the collab diff, but seems the sb didn't showed up during the breaktime, so I still would suggest to open the letterbox during breaks.
Normal:
Beatmap design/suggestion
03:50:116 (1,2) - these 2 sliders are not in a very beautiful place, maybe try to make them more beautiful?
others are all fine for me.
Collab:
Issue
[TimingPoints]
1895.85389724632,368.098159509202,4,2,1,40,1,0
a little different with other diffs which were offset 1896, not sure if this is okey, but maybe try to fix it.
00:15:331 (1) - new combo bug, add one.
03:21:957 (1) - 2 timing sections at the same place, delete the unused one.
Beatmap design/suggestion
01:18:828 (6,7,8,9,10) - this pattern is pretty hard and sudden....
01:43:490 (4) - maybe try a new combo here, because this slider stacks and slows down too.
03:21:957 (1,2) - I am really not a fun of a slidershape like this, not beautiful imo, maybe try some beautiful slider shapes.
Hitsound
00:13:674 (1) - I think it is better to make the end of this spinner louder, it would be more comfortable imo, and easier to hit the notes after the spinner.
02:07:969 (3) - maybe use the normal clap like what you did before here, that fits pretty well imo.
03:27:846 (3) - maybe try to add some whistles on this kiai too, feel a little boring that comparing with the kiai before here,the last kiai is lack of hitsounds, so.
I think if it was me, I may use more normal hitsounds instead a lot of soft ones, just personal feeling =3=
good luck~ I like this song pretty much=3=