00:40:400 (5) - would be better as circle slider for the violin personally i feel it's not a big problem chain wise at this bpm especially when there is already chains like this 00:54:200 (2,3,4,5,6,7,8,9,1)
00:50:900 (6) - these would be representable as repeats imo idk how'd you do it without moving a lot of the map tho
00:57:200 (8,9) - I feel the current rhythm could represent the vocal with this in mind i would do a rhythm like this https://osu.ppy.sh/ss/19140492/3889
00:58:100 (1,2) - I would just make this a repeat as you did previously the wait to click that circle feels daunting imo :)