From my modding queue. Sorry for waiting so long since I am too busy irl ;w;.
[General]
> 00:00:494 - Using HS:S is too soft for Taiko HS in most cases. The music genre or dynamic of song does not support for a Soft Hitsound obviously. You may use HS:N 40~50% (the setting in Stu's Oni) instead of using HS:S 75%. (In 99% cases Taiko maps use HS:N)
[Kantan]
! 00:00:494 - not really recommended to use any SV changes in Kantan even it's just 90%. Consider remove it, except you have very strong rationale behind.
> 00:16:541 - you can remove this note for the sake of consistency at 00:18:207 (7,8,9) - , and showing a better note spread with Futsuu as well.
> 00:44:874 - Finish is available right here to state it per 2 bars.
> 00:59:374 - umm, how about shifting it 1/2 forward to 00:59:541 - , so as to fit your previous mapping style in Kiai (having the note hit on the on beat instead of the exact vocal timing)?
> 01:02:207 - / 01:02:707 - / 01:16:874 - Finish them, strong instrumental accompaniment.
[Futsuu]
> 00:21:202 - shifting it to 00:20:541 - seems better. Then you will have constant nnn nnn nnn pattern from 00:16:207 - to 00:20:874 - . (00:21:207 - no need to worry about missing a drum kick here since the D at 00:20:874 - dominates the music there, that's fine.)
> 00:58:207 (104) - you definitely missed a Finish here.
> 01:00:374 - unnecessary note breaks your consistent vocal mapping channel, remove it.
> 01:03:541 - / 01:04:874 - / 01:06:207 - Finisher of coz ~_~
> 01:07:874 - It's a potential Finisher due to the high-pitch drum kick. I see you used it in Oni only, you may make this timing consistent in all of your difficulties.
> 01:14:541 (144,145,146) - they should be N n N because of the drum set. The instrumental part seems having a bigger dynamic here, although the melody goes to the piano.
[Muzukashii]
> 00:22:207 - shiting it to 00:21:707 - can be more consistent to 00:16:207 (9,10,11) - / 00:17:541 (14,15,16) - these patterns. Meanwhile, shifting this note can also emphasize the expression of melody-mapping.
> 00:36:541 - Change it to k for emphasizing the upcoming Dons, matching 1st & 3rd beat drum kick?
> 00:57:791 - shifting it to 00:57:624 - so as to let the vocal start outstandingly at 00:57:874 - ?
> 01:03:541 - / 01:04:874 - / 01:06:207 - / all Finishers should be used right here lol
> 01:07:874 - it depends what are you going to change in Futsuu, either using Finisher or normal note is fine
> 01:14:541 - same case in Futsuu, I am pretty confused about the usage of Finisher here. I can understand that you want to emphasize the strong piano fz chord by using Fnishers, but on the other sides, you neglect the drum elements which should be more famailiarized actually in Taiko mapping. Therefore, how about k KK D ---> K kk D ?
[Oni]
> 00:20:874 - You missed a Finish here
> 00:23:541 - inappropriate and unclear usage of Finish here. The obvious one should be at 00:24:874 - , not 00:23:541 - . Remove the latter's Finish please, the piano chord or drum set cannot support its existence.
> 00:25:874 - actually you can just map what you did in Muzukashii right here, ddd suit the low-pitch drum hit triplet. kkd seems a bit weird, I can't exactly tell where it's strange though.
> 00:26:207 - another missing Finish
> 00:26:374 - You may remove it to create a space to make the spotlight shed on the vocal. Take ref. at 00:28:707 - / 00:31:707 -
> 00:36:124 - adding a kat here to form a triplet to show better note spread with Muzukashii
> 00:36:541 - same advice in other difficulties, changing it to kat?
> 00:37:707 - / 00:40:374 - / 00:43:041 - small notes fit better since they can emphasize the upcoming K/D
> 00:46:624 - you may remove this note to redue the length of this stream (it's too long for Oni but okay for Inner Oni). Meanwhile, the drum kick at 00:46:541 - can be specified with its end.
> 00:48:791 - / 00:54:124 - Remove it since two consecutive 5-plets seems too much in the whole Oni.
> 00:51:374 - / 00:56:707 - be consistent! Finish is not really needed
> 01:14:207 - How about kkd K? The following suggestion at 01:14:874 (377,378,379) - would be the same in Muzukashii.
[Fan's Oni]
> 00:00:494 - I feel like the upcoming gap is too big. How about adding a kat at 00:01:179 - ? (though I know that you are trying to follow the instrumental part very strictly)
> 00:14:036 - ineffective green timing point, you may remove it.
> 00:17:207 (55,56,57,58,59) - sounds a bit dull, maybe putting a note at 00:17:291 - would be richer in terms of patterns
> 00:22:041 - using ddd triplet to fill up the gap to map the instrumental part as well? It seems you are going to match all things....
> 00:24:707 - this little part is very strange here: 00:24:874 - / 00:25:374 - they share the same dynamic but you used different patterns to display them. The former is loud enough for a Finisher, try not to waste it if possible... How about something like this? 00:24:707 -
> 00:36:541 - same in other difficulties, change it to a kat?
> 01:06:207 - it is as same as 01:16:874 - in terms of structure, let them be consistent (either normal note/ Big note)
> 01:15:374 - cymbal crash here same as 01:14:541 - , Finish is needed consequently
[Stu's Oni]
> 00:10:779 - you may add a d here because you start mapping piano since 00:08:722 -
> 00:46:207 - this stream is way too long, cut it down please.... Similar at Oni's case, how about removing 00:46:624 - ?
> 00:59:541 (292,293,294) - sounds unnecessary and cannot show the similar gap like what you did at 00:56:874 - / 00:51:541 - , consider remove these 3 notes.
> 01:06:207 - completely over-mapped stream, nerf it already. You may use K ddd K this rhythm back again until 01:07:541 - . For example 01:06:207 (1) - :
> 01:16:874 - missing Finish, add it back
> 01:19:707 - ddk does not fit that single guitar chord ending to be very honest. A simple D + spinner / single spinner ending is good to go.
[]
There should be more to be polished in GDs, get a few more mods and feedback, then find me again. Good luck from now on.