Insane00:00:500 (1,2,3,4,5,6,1,2,3,4,1,2,3,4,5,1,2,3,4,5,6,7,8,9,10,11,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8,9,10,11,12,13,1,2,3,4,5,6,1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,1,2,3,4) - This whole section is kinda akward, it's undemapped rythmically (for an insane) but overmapped in terms of spacing, for example :
-00:11:943 (6,7,8) - These 3 notes are way too spaced, even if they're one beat apart of each-other it's just too hard for an insane just rename your map yomi yori at this point (holy I'm mean).
00:02:046 (5,6,1,3) - There, for example the issue is the opposite as you're undermapping, I'd recommend making these reverse 1/2 beat sliders or something, it's up to you but I don't think your map'll get ranked with this rythmic composition.
00:16:891 (6,7,8) - We can still note some interesting ideas on this part of the map like the placement of these 3 sliders, I like the idea but i find myself a little dissapointed as you didn't push that concept far enough, well, you still have pretty good ideas, hope you'll learn developing them.
00:29:881 (1,1,2,3,4,5,6,7,8,9,10,11,12,13,1,1,2,3,4,5,6,1,2,3,4,5,6,7,1,2,3,4,5,6) - Moving on a better part of the map, to me, this whole part is actually pretty good ! Though I'd still make this slider at 00:29:881 (1) - a little more smooth like this :
https://imgur.com/a/O9tfW (it's really just a detail tho) and I'd also space these 2 at 00:41:634 (3,6) - the same as 00:40:396 (4,7) - as I don't really see any reason to space them less, I guess that kinda personal taste so if you still wanna space them less than the ones before, just space the whole thing more so that 00:41:634 (3,6) - don't overlap it's not really pleasant to look at.
00:42:871 (1,2) - Space this more it also overlaps and looks bad.
00:46:118 (10) - I'd recomend doing something more like this :
https://imgur.com/a/IKsSw ; it may also be personal but yeah I don't like this slider.
00:47:510 (1,2,3,4,5,6,7,8) - Wew well this looks good, you see you can do beautiful stuff when you want
00:49:984 (1,2) - I'd make these fancy sliders, just not simply curved ones, I mean you have time to make them last long, they stand out in the song as they're in the climax, come on I know you can take advantage of this and make them stand out.
00:54:469 (3,4,5) - Those "jumps" in the refrain feel undermapped, maybe space them more or redo them as real jumps, it's a Insane after all, not an Hard so yeah maybe do real jumps.
00:58:644 (1,2) - Uhhh what is this ? Like ; I see where you're going with this but in the first slider you're ignoring a sound at 00:59:262 ; it's like you wanted to put this pattern in the map but didn't really know where to so you ended up putting it up here, I agree you have to make a long slider or put a spinner or a break or really whatever you want at 00:59:881 but this is still incorrect, oh and it's akward to play when sight-reading.
01:17:201 (10) - I'm not a fan of this, again, maybe it's personal but I'm pointing it out maybe you'll find a better way to map this.
01:25:860 (1) - Um yeah you should prob remap this.
01:30:809 (9) - Again , a lot of personal mods but I'd recommend you to keep this as a slider that makes up a circle, yup you finally can but maybe make it a bigger one that doesn't finish it's round totally, that'd look better, here's an example :
https://imgur.com/a/gs8Nz01:32:974 (1,2,3,4,5,6,7,1,2,3,4,1,2,3,4,5,1,2,3,4,5,6,7,8,9,10,11) - This is undermapped pretty much the same way as the first section of your map.
Well i guess we're done with that mod, it was my first one so i hope it was not that disgusting and that it'll help you improve your map, thanks for reading !~