Hi. If you don't like my suggestions don't give me kudos.
[Hard]
There is an inconsistency with your NCs at the beginning. Once you have a NC already on the stream 00:02:831 (1), once you have one on the slider after the stream 00:05:772 (1). I suggest removing the NC on 00:02:831 (1).
00:10:021 (1) - finish
00:13:289 (5) - NC
00:15:249 (1,2) - nice ^^
00:17:864 (3) - maybe NC
00:22:602 (4) - move to x:460 y:216, this feels better
00:24:563 (2,3,4,5) - something like this would feel better:
http://osu.ppy.sh/ss/32945101:03:289 (2) - finish on start with 60% volume, 01:03:615 80% volume here again
01:05:903 (2) - same as ^
01:13:746 (1) - ^
01:16:360 (2) - ^
01:12:439 (8) - shorten by one repeat, ctrl+r, and add a circle at 01:13:093 over 01:13:419 (9)
02:06:034 (3) - same as 01:03:289
02:08:648 (3) - ^
02:16:491 (1) - ^
02:19:106 (1) - ^
02:44:596 (1,2,3,4,5) - I would increase th spacing between these
02:47:864 (1) - whistle on start? It sounds a bit empty here.
02:50:478 (1) - ^
and so on on every first beat in each measure until 03:06:164 (1)
03:29:694 (1) - same as 01:03:289
03:32:308 (1) - ^
03:40:151 (1) - ^
03:42:766 (1) - ^
03:50:609 (6) - finish
04:09:236 (6) - make this more like a wave slider
04:32:439 - maybe lower SV here, for example 0,75x. You will have to remake all sliders and the spacing then, though.
Although I don't like maps with this style I have to admit that this diff is pretty good.
[Normal]
AR 5 maybe.
00:30:282 (7) - this slider should be curved mroe evenly
00:43:681 (3) - nazi: one grid to the right for equal spacing
01:03:289 - do it with the finishes like in Hard
01:11:132 (5) - make it curved like this, it feels better:
http://puu.sh/xHpU02:06:034 - again the finishes
03:12:700 (6,7,8,1) - make it like this:
http://osu.ppy.sh/ss/329478? You have to re-adjust the spacing between 03:14:008 (1,2) then ofcourse.
03:29:694 - finishes like in Hard
04:32:439 - maybe lower SV here, for example 0,75x. You will have to remake all sliders and the spacing then, though.
[Easy]
AR 3 maybe.
00:03:158 (1) - hm, in Hard and Normal you always added a NC every two measures. You should do this here too, so remove this NC and the following ones where this case applies.
Or you change your NCs in Hard and Normal.01:03:289 - apply the finishes like you did
(or didn't you do it?) in Hard and Normal
02:06:034 - finishes, you know what I mean
03:06:164 (1,2) - like this:
http://puu.sh/xHAb?
03:12:700 (3) - return slider like at 03:10:086 (2)?
03:29:694 - finishes
04:32:439 - maybe lower SV here, for example 0,75x. You will have to remake all sliders and the spacing then, though.
Yo, that's it. You got a really good looking mapset here, not much I can find. Star.