00:01:382 (1,2,3,4,5,6,7,8) - I believe you're oversimplifying this section. The first group 00:01:382 (1,2,3,4) - with 1/1 rhythm works better because the second part 00:03:200 (5,6,7) - has synths sounds on the red ticks and needs proper distinction. If you check hard diff 00:03:200 (5,6,7) - and normal 00:01:382 (1,2,3,4,1) - both have that.
00:04:109 (1,3) - swap nc? nothing really changes aside from that little background instrument becoming higher pitch. Whereas a very noticeable bass kick starts on 00:05:018 (3)
since you're doing a symmetry map, it's very important to keep the visual distinctions for patterns that are mapping the same rhythm but covers different stuff in the song. Things like 00:06:836 (1,2,3,4) - and 00:20:245 (1,2,3,4) - using the same idea for drastically different sounds could be improved with some variation.
00:12:972 (5,6,7) - Since the map is overall very consistent and clear with its usage of visual spacing, it's kinda weird to have these 1/4 objects spaced as if they are 1/2 objects, especially when there's no increase in intensity to really back it up. This is the only part of the map that does this outside of the chorus/solo, so to me it just doesn't feel fitting.
00:14:563 (4,5,6,7,8,9,10,11) - tidy these up a little for better visuals, like this: https://osu.ppy.sh/ss/17665017/f630
00:23:200 (2,3) - You repeat this often but the vocals are actually doing this rhythm https://osu.ppy.sh/ss/17668492/be7b so you may wanna rework all these similar rhythms to this.
Also the same pattern is repeated frequently even where the music is different, such as 00:24:109 (5,6) - 00:25:927 (11,12) - 00:30:472 (2,3) - 00:34:109 (2,3) - It would be cool if you introduced more variations of this rhythm to represent different musical patterns more effectively.
00:23:200 - ~ 00:52:291 - during the entire verse you only ignored the vocals twice 00:45:472 (3,4) - and 00:48:654 (2,3) - . This variation comes very inconsistent within the section and its second iteration feels with both vocals lines passive is a massive let down. I'd recommend either making it consistent with 00:45:472 (3,4) - or change both to keep the vocal line on red tick active.
00:25:018 (8) - 00:28:654 (8) - 00:39:563 (8) - 00:42:291 (7) - miss NC ig
00:32:291 (8,1) - switch NC here
00:34:791 (4,5) - a higher, stronger vocal has quite low spacing here but right afterwards, a less powerful vocal has way bigger spacing 00:35:472 (6,7,8) - . i suggest swapping the spacings to make it follow the song better and stay consistent with the map
for comparison, you had large spacing for higher pitch at 00:30:927 (3,4,5) - , smaller spacing right after
00:51:495 (4,5,6) - It's kinda weird if these sliderheads 00:51:950 (5,6) are on blue ticks.
I suggest place the sliderheads on white or red ticks... or maybe just make a burst of 4 notes instead these 00:51:950 (5,6).
00:52:745 (1,2,3) - the heart slider is cute but the music doesn't follow this rhythm at all. This rhythm fits much better: https://osu.ppy.sh/ss/17668504/7e94
00:58:882 (1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4) - In this pattern it would make more sense to end it 01:02:291 (4) - where it started 00:58:882 (1,2,3) - somewhere in the first triangle and then you work around the square on 01:02:291 (4,1,2,3,4) -
01:04:942 (11) - The drum here is not a sound snapped to anything, it's just a buzz roll. However it definetly sounds closer to have its first sound being snapped on the blue tick 01:04:904 - . I'd recommend making a slow slider instead of multiple reverse in this case, since the default drum slider-slide perfectly represents the song here.
If you still want to keep a fast reversed overmapped, you could, but using 1/6 is just unfitting since there's no subdivion change here.
01:10:472 (8,9) - 01:17:745 (2,3) - too distant 3/4 jump. this is surely a mistake during the playbase since it is very unexpected, these are also the unique super jump in the whole diff present in the kiai. you should remove the circle to make them 1/2 jump that would work better
01:21:382 (6,1) - I believe you're undermapping too much with this spinner. You did in a way that's supposed to follow the vocals at 01:21:382 - , but you're missing an important guitar sound in 01:22:063 - which is also what you follow afterwards in 01:23:200 (1,2,3,1,2,3,4) - .
You can go with slider into spinner if you want to keep the spinner and make sure it lasts long enough.
01:23:882 (1,3) - have these sliders symmetric, I would reccomend something like this but its up to you: https://osu.ppy.sh/ss/17665023/5cc5
01:25:586 (5,1) - This comes very off with the rest of the map. You didn't use any stream jump prior to this and overall the spacing of 1/4 wasn't this big anywhere else in the map. Even considering slider ends to streams spacing it's usually not that big 01:24:563 (4,1) - , 01:26:609 (3,1) - . So unless you have a very strong reason to use this, I'd say you should definetly re-work spacing here.
01:27:745 (5,6,7,8,9) - this stream is a bit underwhelming spacing wise. In terms of comparision, 01:25:132 (1,2,3,4,5) - it's the same spacing even tho it's way less intense, 00:15:586 (8,9,10,11) - is even bigger spaced in the intro, same goes to 00:36:836 (1,2,3,4,5,6,1) - and 00:51:836 (1,2,3,4,5) - . I'd recommend buffing this so that it stands out like it should.
This applies as well to 01:28:427 (10,11) - which could use the same spacing for the doubles as 01:26:950 (1,2) - .