00:18:194 - 00:19:244 - ok so, this section appears multiple times in the song and everytime it appears the patterning you use is different, I think for consistency you should stick to the one you used the first time this section appears (00:18:194 - 00:19:244 -) (imo it's the one that best fits the song), this happens here 00:46:844 - 00:48:044 -, here 01:06:044 - 01:07:244 -, here 01:25:244 - 01:26:444 -, and here 02:22:844 - 02:24:044 -, there are probably more instances of this happening so please check the map for these
00:41:969 - It would be better to add a note on this line because the drum sound is relatively clear like 00:42:494 (42494|2,42569|1,42644|3,42644|0) - this part. https://osu.ppy.sh/ss/15549488/b336 As you can see in this screenshot, if you add notes to this line, you can get a very neat pattern and it will be more fun as all the drum sounds are expressed. And not even more difficult than Insane difficulty.
Triple use of (01:07:244 - untill 01:14:444 -) this part is inconsistent. 01:07:544 - 01:12:344 - These two lines use triples to represent the three sounds, Kick, Snare, and Crash. But even though there is no crash sound in 01:13:544 - 01:14:144 - these two lines, it's expressed as a triple. At first I thought there was a problem with the Hitsound difficulty, but after listening to it over and over, it doesn't seem like that. Please make it consistent.
01:10:844 - 01:10:994 - 01:11:144 - These three lines have drum sounds with the same strength and pitch as 01:09:344 (69344|3,69344|0,69494|2,69494|1,69644|0,69644|3) - this part. So 01:10:994 - this line should be expressed as a double to be consistent. Actually, 01:10:844 (70844|1,70844|0,70994|2,71144|3,71144|1,71294|0) - this part and 01:10:244 (70244|3,70244|2,70394|1,70544|0,70544|2,70694|3) - this part have the same pattern, but the volume of 01:10:394 - 01:10:994 - these two lines is very different.
In addition, the mood of the song changes from 01:10:844 - this line, so it would be better to express it in a different pattern from 01:10:244 (70244|3,70244|2,70394|1,70544|0,70544|2,70694|3) - this part.
Since there is a relatively synth sound in 01:11:894 - this line, so 01:11:744 (71744|0) - this LN can be expressed by dividing it by 1/2 like this https://osu.ppy.sh/ss/15558319/c7e9
01:12:194 (72194|2) - I suggest combine this note to 01:12:344 - to form a minijack just like 01:07:394 (67394|3,67544|3) - You can done it by ctrl+h 01:12:044 (72044|1,72194|2) -
01:16:994 (76994|3,77144|2) - i'm not sure if you're intentionally simplifying the rhythm but the sound where these 2 lns should end/start is the blue tick after the one its currently on
I think you can add a note to 01:22:169 - 01:22:769 - these lines like 01:23:294 (83294|3,83369|2,83444|1,83444|0) - this part like this https://osu.ppy.sh/ss/15558347/e14e This way all the drums will be expressed so 01:23:294 (83294|3,83369|2,83444|1,83444|0,83894|3,83969|2,84044|1,84119|0) - this part will be more emphasized and fun.
01:27:794 (87794|0,87944|1,88094|3) - 01:32:594 (92594|2,92744|1,92894|0) - If you compare these two parts, you will see that they have almost the same pitch. So it might be better to express it in the same way. I think the pattern of this part is better because it fits the melody of the song. So you can modify it like this https://osu.ppy.sh/ss/15558415/007f https://osu.ppy.sh/ss/15558417/ef01
01:44:144 (104144|3,104144|2) - reduce this to a single since it is just a hihat, not a snare or a kick, you should make this a double instead for snare 01:44:294 (104294|1) -
02:00:044 (120044|3) - double for snare, also here 02:01:844 (121844|1) - , and I think you should reduce this to a single 02:01:544 (121544|1,121544|0) -, since you only used doubles for snares every 2/1 beats during this section
02:07:544 (127544|3,127844|0,128144|3,128444|0,128744|3,129044|0,129344|3) - could be better if you move these LNs to another column for different sound
I'll keep it.
I want to use sth like this 02:05:744 (125744|2,125894|2,126044|1,126194|1) - and 02:07:544 (127544|2,127694|1,127844|2,127994|1) - to express the different sound in this part!
02:47:969 You missed this sound, you should move 02:47:894 (167894|2) - to 02:47:969. The similar sound appeared also in 00:52:769.
03:02:744 (182744|2) - I suggest removing this note as all other diffs had nothing here, you should definitely keep consistent with them.