Hard:
00:12:071 (2,3) - 1/3 here is really hard to detect when playing, maybe use a slider? (Could use 1/2 still hits beats but not the synth)
00:13:344 (5) - ^ maybe extend the last slider to hit the 1/3? (or 1/2?)
00:24:071 (3,4,5) - Recommend a returning slider here. Actually you could use 1/2 if you wanted.
I guess you could use 1/2 for the other 1/3 parts but the ones above are the hardest one's to detect in game imo.
Insane:
00:23:616 (5) - Move left 1 square just for neatness.
00:23:889 (6) - ^
00:24:071 (7,8) - This 1/3 part is really hard to catch, maybe use 1/2? Or perhaps use a slider?
00:40:525 (1,2,3) - Jump feels a little weird here.
00:42:298 (7,8) - ^
00:45:844 (1,2,3) - Might be better as a stack the 00:45:844 (1,2,3,4) - is really hard to make.
00:47:480 (6) - Move to red tick at 00:47:616 imo, adjust spacing if you take this suggestion.
00:50:207 (5,6,7,8) - The spacing feels a little messy here and the jump is a little hard to read, maybe make a diamond shape or something?
00:53:480 (3) - Should really be 1/3 if following how you mapped this previously.
00:53:616 (4) - ^
00:53:889 (1) - ^ End of slider.
00:54:707 (2) - ^
00:57:162 (1,2,3,4,5,6) - This bit really is mean, those back and forth jumpy streams...
The other difficulties are looking good

Sorry I can't pubble this yet, some of the snaps in Insane are different from earlier in the map. Also imo some of the 1/3 doesn't play that well (even though it's correct) you could always map those parts in 1/2 if you wanted to or make them easier with sliders. That's all for now, feel free to ask me to recheck again ^_^