From M4M, first ever mod but i'll try my best...
Green is something I like, black is a suggestion,
red is potentially unrankable
HardHP-1 or even HP-2, there are some serious drain sections in this map and this is only a Hard.
AR-1, the BPM is very low so AR7 would reflect that better
00:08:004 (1,2,3,4,5,6,7,8) - I like this!
00:15:879 (3,1) - Unexpected jump is unexpected. Don't feel this really fits the song... Bring it down and around to the left perhaps?
00:16:254 - 00:38:636 - This break is maybe a little long, but I don't know if it's just me.
01:02:754 (4,5,6,7,8,9,10,11,1) - YEAH PENTAGONS
01:08:660 (5) - Don't really see why you need this, maybe get rid of it and re-angle the slider to improve flow?
01:31:254 (4,5,6) - Flow here is very nice
01:53:754 (1,1,1,1,1,1) - HP drain here is kinda brutal for a Hard, if you don't decrease the HP I'd strongly advise you to maybe change some notes into sliders to stop HP drain from being too bad
02:11:004 (5,6,7,8,1) - More pentagons, yay!
02:20:660 (10) - Hmm, move to 256/208 and then the slider after that to 216/212 perhaps? I know 216/212 doesn't fit with grid snap, but I think this gives better flow
02:28:254 (5,6,7,8,9,10,11,12) - I have something similar in the map I'll get you to mod, glad to see you're a fan too
02:50:566 (4,5,6,7,8,9,10) - Hmm, this is a tough one because it might be a bit difficult to read for Hard. You might want to spread it out to improve readability, but I don't mind it, just concerned that it might be a little difficult to read for Hard is all.
02:57:691 (9,10) - Maybe the jump is a little bit too big, but it might be fine
03:37:254 (1) - Any particular reason for NC here?
03:41:004 (1,2,3,1,2,3,4) - This doesn't go on long enough for the HP drain to be a problem, but maybe you could have them in different places, make it a bit more varied perhaps? Also the section after this could be mapped, the drawn-out vocals are screaming to be made into beautiful sliders.
NormalOD+2, OD3 is fine for a Normal, and this Normal is pretty easy anyway so I think OD3 would be better
AR+1, this is purely from my experience as I can still remember when I was playing Normal difficulties and I found AR5 easiest to read, but up to you whether you want to change it or not
Maybe if you decide to decrease HP of Hard, you should decrease HP of Normal as well to keep the spread between the two similar
00:02:004 (1,2,3,4,5,6,7,1,2,3,4,5,6,7,8,9) - I think the whistle hitsound is overused here but that might just be me
01:05:004 (1,2,3,4,5) - SYMMETRY POWERS GO
01:14:379 (5,6) - Hmm... 1/4 beats in a Normal might be a little risky even at 80BPM
01:18:879 (2,3) - Same as above
01:30:879 (2,3) - And again... (sorry, it fits the song but for a Normal it might be confusing)
01:53:754 (1,2,3,4,1,2) - Going to second what Yauxo said here, HP drain isn't a problem this time but it does feel a bit empty
02:48:879 (10) - Don't know if combos should get into double digits on Normal difficulties, maybe split into two 5-combos?
03:41:004 (1,2,3,1,2,3,4) - Same as Hard.
Also there were a few more 1/4 beats but I didn't bother pointing them out
Sorry I couldn't be of much help on this difficulty, this is very well mapped
GL, looking very nice~
And don't forget to mod mine!
Also sorry if it's bad, it's my first mod