How about not mapping 04:57:813 (1,2,3,4,5,6,7,8,9,10,11,12,13,14,1) - a stream with 5 bpm changes meanwhile tapping it, it's so unconfortable.
Also when you are using 04:05:910 (2,3,4) - loops like this, it's really uncomfortable to play just for the sake having 04:05:760 (8,4) - those 2 notes perfectly stacked, and yeah the player just before have a constant movement with the long stream and then suddently break this feels way uncomfortable and song breaker.
04:08:610 (6,7,8) - Those shouldn't be spaced like the previous one according to the piano decreasing.
04:09:360 (4,1) - Having such a linear jump stream with 04:09:285 (3,4,1) - angles like this, is really uncomfortable to play here, you should make that more curvish.
04:10:560 (4,1,2,3) - Uncomfortable stream here you should rotate this part 04:10:635 (1,2,3,4,5,6,7) - clockwise to make the flow smoother.
04:18:435 (1,2,3,4,5,6,7) - Why is this has different spacing then 04:18:135 (5,6,7,8) - it's the same piano sound, it's too inconsistent and questionnable here.
04:19:110 (2,3,4,5,6,7,8,1,2) - The perfect overlap here makes this really unreadable with this AR.
Everything that I mentionned in the first part of 2nd kiai applies for the exact same section at 04:20:235 -.
04:28:260 (4,1,4,1) - This kind of jump stream plays really badly here imo, your other jump stream was better.
04:37:560 (8,2) - Again this perfect overlap makes the gameplay here unconfortable.
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Those are my main concerns, but i have probably more to say about the map's streams that are way too questionnable to me just because the spacing you are using for them, they are not consistant at all with the piano intensity at some place.
I'll just hold back from now and see how this map evolves with the discussion that's going to happen.
Good luck.