Did some testplays, and seems that I cannot understand some of the rhythm: https://osu.ppy.sh/ss/15964488/7ade , especially in the part of 01:45:672 - 02:00:672. This part has been consistently creating [difficulty spikes] for all difficulties mainly due to 3 reasons:
Other than that, quite a large part of the music are well expressed by the mapset. I will elaborate in more detailed modding as well. Putting this as "Suggestion" but I do highly suggest.
Another general suggestion for your hitsound. This may require extra effort but currently, a large part of the map only has drum/clap hitsound. A large part of vocal does not have a strong hitsound with it (mostly soft-hitnormal).
You did a good job in providing some feedback to vocal on the part beginning at 00:30:672, but other than that, including your first part starting from 00:15:672 does not have feedback for vocal if it does not have a drum or clap sound with it, even if your major covered track is vocal. Try compare 00:16:140 (2,3) in Another diff for example would give you a better idea I guess.
The solution would be to apply soft-hitwhistle to that, but you already have the hitsound whistle, so I think this would require some work if you decide to do so.
I think current rhythm choice is much more clear to see and follow. more important is that I don't wanna add 1/8 triplet since the rhythm of kiai time which is used for 1/4 1/6 1/8(expressed by reserved short slider) 1/12 snap is complex enough to play. If I do 1/8 triplet, there would too many kinds of overlaps to read. That would be very hard to read imo. btw you mentioned a nice point to let me explain. Thank you to it !