00:15:366 (1,2,3) - Make these a straight line.
00:17:212 (4,5,6) - Make these a straight line, and make parallel with 1,2,3 for a better aesthetic.
The rest of the map isn't wrong according to ranking criteria, but the map's structure, especially in the kiai with long 1/2 beat sections, may be extremely unintuitive for new players. Specifically, constantly moving in a straight line with no changes in direction may confuse new players and cause reading issues.
It honestly reminds me of a section in Scrambled Eggman, it's confusing structure and just how many attempts it took me to clear as a new player (it's still one of my most played beatmaps at ~70 attempts.)
https://youtu.be/0SeSM-ijGzU?t=1m1sIt's definitely not as bad in this map, but I'd still recommend some changes:
-> Spread out the rhythm density. Try adding one or two full beat gaps in these long chains of half beats, to give players a chance to catch up and to make reading simpler in some areas.
-> Add some symmetry, and recognisable patterns. This would reduce the load on the player's reading, and allow them to predict rhythm. For example, instead of using 01:21:828 (1,2,3,4), why not add some symmetry to make reading easier, e.g. like this?
-> Increase SV or DS. Obviously it still needs to meet ranking criteria, but a simple DS increase can make differentiating between notes and sliders 10x easier for newer players.
Fix these 1/2 chains, and the map should work well.