So, that's what i found out and what i suggest you to do 'bout your map - i'll take another look later, but i guess that's what i have for you for now
Add KIAI-time (both diffs): 03:25:071 - 03:41:492
03:45:353 - 04:03:597
04:06:439 - 04:21:353
04:24:036 - 04:28:221
Noboru: Increase the approach rate by one (5 -> 6) - You don't have to do that, since it's my own opinion.
03:25:071 (5) + 03:25:228 (6) - Guess you could add a note here (at the end of the slider), just needs the right hitsounds
04:05:018 (5) - Good idea for that one, thumbs up
04:15:439 (5) - I like the idea of that slider, but i guess most people won't like 1/8-reversesliders in normal-diffs :/
Mikako:Maybe decrease overall difficulty by one (7 -> 6) - Again this is my opinion, since i think it's better to keep the overall diff below the approach rate.
00:34:071 (3) - Enlarge this one to the next 1/4-step, looks/sounds better, give it a finish-sound (you could use the custom one of the kirby-skin for that, sounds nice for me)
00:36:124 (6) - Give this one a finish sound
00:39:124 (5) - Give that one a finish sound (+ maybe a whistle, but i'm not sure 'bout that)
00:41:018 (7) - Finish
00:41:650 (9) - Finish
00:45:439 (4) - Finish
00:46:703 (1) - Add finish to the whistle
00:49:229 (5) - ^
00:50:492 (8) - ^
00:51:124 (1) - Finish
00:53:650 (5) - ^
01:01:860 (3) - ^
01:05:018 (1) - ^
01:56:176 (3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19) - You'd better make a reverse-slider or a stacked stream out of it, but no pure circlestacking; most people don't like 1/8- and 1/6-mapping, so you should think 'bout removing/changing this if there are more people pointing at that.