Hi.
[Insane]
I'm not sure if this is personal preference or not but I tested this diff with both AR8 and 9. While 8 plays fine, 9 gave me a better feeling on the jumps and streams. But i'll leave this up to you, because ar9 could be too fast for this BPM. (I've been playing AR10 most of today so my eyes could just be used to the high speed.) Otherwise this diff is perfect.
[Hard]
00:10:657 (4) - Remove the whistle from the tail? It doesn't land on any beat that fits.
00:11:253 (5) - New combo here. Very lengthy combo and because you were just in a jump people can easily think that 4 and 5 are a jump. With the new combo it should remove that factor. (And a new combo works here anyways with the beat.)
[Normal]
01:01:517 - Skipping this beat is a bad idea. It's probably the most powerful part of this section musically so you should try and bring it out in the map. I did this:
http://puu.sh/1lEnN Spacing won't be an issue with this because you don't need to move your cursor at all the get a full 300 on the slider. You could add this, or do something more to your preference.
01:13:437 - Same case as above. You can put a circle and it should work fine.
[Taiko Oni]
The volume is so loud, try putting it at 65.
00:32:511 (1) - Delete this note. Gives more feel to the music instead of just a nonstop pattern. (Also it's unrankable to have very long strings of 1/2 beats. I like to think 4 measures is the longest a string of notes should be. But there can be special cases)
00:49:796 (1,2,1,1,2,1,1,2,1) - This would be better if you put the focus on the vocals instead of the drums. The vocals are overpowering this part of the music. I did this
http://puu.sh/1lEBR ( D D K d dddk ) Yes that last bit is 1/6, listen to it on 25% and you'll hear the 4 beats. You could also add a beat inbetween D and K at 00:50:193, but this takes more feel away from the vocal part.
00:55:954 - add a note here? Gives a better feel to the music imo.
01:01:517 (1) - finisher? I hear a crash symbol. If you do so you can also delete 01:01:716 (2) - . Flows nice and breaks up the pattern a little. Not to be repetitive but it gives a better feel to the music.
01:07:874 - add a note here like before
01:13:437 (1) - Do the same thing with the finisher and note deletion.
01:19:794 (1,2) - You can also do the same here as above.
[Muzukashii]
00:47:809 (1,1,1,1,1,1,1,1,1,1,1,1,1,1) - Instead of this long and boring d k d k d pattern try bringing out the vocals instead. It will be way more interesting than this.
01:19:794 (1,1,1,1,1,1) - Make the first note a finisher then delete 01:19:993 (1) - . Then make 01:20:192 (2,1,1,1) - all d's. Represents the music a lot better.
01:21:583 (1) - make this D. Downbeat k's fffffffffffffff
01:27:741 (1) - Finisher here?
Ok that's it. Look this over and call me back.