[General]
Combo colors 1 and 2, and 3 and 4 are very similar, maybe mix them around so the similar ones dont come in a row
Why only 2 diffs? will you add another one?
[Yuki]
Why is this the only diff with a custom name?
Consider adding a break in between your current 2, since it has a playtime of 2:30 in between those.
Use more whistles (specially in the beginning when there's barely any hitsounds besides finishes).
03:26:880 - Unsnapped kiai start.
[Air_kannabi's Easy]
Your combos get pretty long for an Easy diff, like for example 03:12:186 (1,2,3,4,5,6,7,8), among others
00:07:288 (3) - Avoid short sliders that repeat multiple times on the easiest diff.
01:25:655 (6) - ^
01:37:900 (5) - ^
01:42:798 (4) - ^
I'll stop from pointing them out now, but take them in mind
03:02:390 - Unsnapped timing section, wont affect your spinner end as intended.
03:25:043 (1,1,1) - Dont spam new combos.
Pretty nice and sweet maps