HOYL, big mod.
I lost my reply somewhere in the bitjungle, no way im re-writing it. Instead ill just give some general answers
[ General ]
Yup Kiai done and advice taken about adding breaks.
[ Futsuu ]
This mod was the toughest to take, i took a lot (almost all) of your suggestions and made the map less dense, with breaks, more consistent doubles and less 5 note patterns. And I ended up with a map that does not look like mine. Don't get me wrong it is most likely a lot better and suitable for a Futsuu, maybe I'm just going to have to grow into it. Huge help though!
[ Muzukashii ]
Again took a lot of your suggestiong and fixed them, I remapped the Kiai part a bit, still needs work though but I'll have give it another look while keeping your mod in mind on a later date.
[ Oni ]
I think all was applied here.
[ Nyanner Oni ]
Here too all applied. Pretty sure I'll end up axing this whole difficulty eventually tho cause I'm mapping a bit out of my comfort level here and NekOni already does the trick for something more challenging in this mapset.
That should just about do it. You definitely need to work on making easier difficulties, but the rest of the mapset isn't bad. Good luck toward ranking!
Huge thank for you big mod. Was very helpful not only for this mapset but as a general advice about mapping different diffuculties.