Only played Syadow's Normal so far. Overall, I liked it. I'm a complete beginner at modding, but I'll try anyways.
00:25:620 (25620|1) - I think that beat should be shifted down 1/4. The song keeps a steady rhythm, and I think it fits the map better if you keep it at an even beat.
00:26:953 (26953|2) - Same as above. To me, idk but it just sounds off.
00:27:370 (27370|0) - I think omitting this note might fit the music a bit more.
00:41:620 (41620|3) - This one as well I think might need to be shifted down 1/4 too.
01:39:703 (99703|2) - This note would fit the music more if it was moved down 1/4
03:15:203 (195203|1) - I think this note would be better placed 2/4 up at 03:15:370 (195370|1)
I don't really see any issues with the rest of the map. Though, personally, I wasn't a fan of the irregular bpm change at the end, but once again, that's completely subjective. Hopefully, I was useful