[Muzukashii]
Seems like your background is of lower quality (I see pixels. Might be me, but be sure to check out if you have a better quality pic somewhere in wallpaper sites, even the official site.)
The difficulty is quite easy and very close to Futsuu (in terms of difficulty), be sure to balance a bit more your mapset in those diffs.
00:05:770 (16,17,18,19,20,21) - Aside from 21 (which is mapped to the lyric), since you mapped all the notes to a repeating snare, why not reflecting this ? (all kats or at least an alternation between k and d.)
00:08:370 - I think you can add kats on those drums, it won't hurt !
00:08:570 (27) - If you applied ↑ : Change to don, so your kat will be stronger.
00:09:170 - Same as 00:08:370 -.
00:14:370 (42,44) - There's a small inconsistency here, 42 is as high-pitched as 44. I'd like to see the same note for both. Also there's a snare unmapped between those notes.
00:14:370 (42,43,44,45,46) - The detail of the best pattern to this part is that :
http://puu.sh/4TTDQ.png -- it will take better the guitar and drums together.
00:19:370 (58) - I either accidentally moved this or you forgot to replace it right. I'll recommend moving to 00:19:570 - and cutting it until 00:19:970 - .
00:20:370 (59,60) - I understand a bit why these notes are here, but the first sounds a bit out of place. It might just be me !
00:22:370 (64,65,66) - I'd rather see dons there (and in most of the part following it) as the song almost strictly follows toms/kicks. Snares and what-vocals-you-want-to-be-mapped can be kats.
00:29:570 (89) - I don't understand much the meaning of this kat. No vocal, no snare.. Change to don ?
00:41:770 - Add a don there maybe ? It will make it groove a little bit more.
00:48:770 (149,150,151,152,153,154,155,156,157,158,159,160,161,162) - I think you'd separate a little bit these, act as if it was half BPM.
00:54:770 (163) - If you put don, I am certain your K at the end will be more pronounced.
00:56:370 - Add a kat, you know why xAx
00:56:970 - If you applied ^, add a don here for more groove ?
{
01:05:770 - And here, I'd recommend adding a don for more groove. (1/2 before is possible too, up to you)
01:08:370 (18,19,20) - This pattern seems a bit strange.
01:18:170 (46,47) - Add a don between these notes ? (Same reason as the two other above)
01:21:370 (56,57) - ^ (Won't point out all those other 3/2 gaps, I'll end up saying the same.)
01:24:370 (63,64) - 63 should be mapped as k since there's a snare but since it's mapped to a vocal... Try to find a better compromise ? I'd go with kd, sometimes reverse pitch works well !
01:27:570 (71,72) - If you've mapped to the vocal there, why don't you make it 3x kat instead ? The verse ends in the middle.}
01:29:170 - I'd recommend putting a kat.. you know.
01:32:770 (83,84,85,86,87,88) - ddkd dkdd, as in the beginning.
01:39:170 (101,102,103,104,105) - Same ryhthm as in 00:14:370 (42,43,44,45,46) -
01:44:170 (115) - Same thing as in 00:19:370 (58) - (so that wasn't an accident)
01:56:570 (152) - Make it finisher ? 01:55:970 (150,155) - are finishers so why not this one ?
01:59:170 (160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175) - Same comment as in 00:48:770 (149,150,151,152,153,154,155,156,157,158,159,160,161,162) - (...So repetitive)
02:06:770 - Kat here ?
The kiai being the same, if you apply some things to the first kiai, make sure to do the same in the second. And third.02:54:170 (99,101) - Since they're strong guitar strums, why don't you put finishers ?
02:57:170 - Here, despite the fact it's a snare, don would fit a bit better to how you've mapped this.
02:57:970 - Add a kat here, though. You can't let that pass !
03:00:370 - Add a kat here, as there is a snare. I am certain don does fit, but snare is better to me.
03:01:170 - Same as 02:57:970 -.
03:03:570 - Don here, it would fit better to your pattern. Kat sure would fit but sound a bit awkward.
03:04:370 - Aaaaaaand same as 03:01:170 -.
03:07:970 (136,137,138,139,140,141) - They're all the same sound (141 excepted), unify them ?
03:11:170 (144) - Big don right here, strong instrumental happens !
03:12:570 (145,146,147,148,149,150,151,152,153,154) - Well all of them have this, but not all will deserve them. I'd recommend putting on the most important ones, though.
The kiai being the same, if you apply some things to the first kiai, make sure to do the same in the second. And third. I just copypasted this line, yes.03:53:570 (254,255,256,257,258,259) - ddkd dkdd, like the beginning. (would be a perfect loop ?)
03:59:970 (272,273,274,275,276) - ddkd dkd, like in the beginning.
Kantan - 100%
Futsuu - 100%
Muzukashii - 100%
Oni - 100%
Jik's Inner Oni - 100% (by Jikson[m9])
/
Maybe another bg for <Guest Oni>, just for reverse consistency
General mismatch of difficulty level. Refer to authentic sets or OnosakiHito's guide on suggested descriptors 
it follows the finsiher sound from song
