00:14:831 (14831|0,15520|2,15865|3) - imo these LN is weird. in previous part, you make LN to represent piano here 00:13:451 (13451|2,13451|3,13796|3,13796|0,14141|3,14141|1,14486|0,14486|3) - . but after these part, you suddendly change the LN presentation for guitar el sound. it is pretty weird for me imo.
So I would suggest to keep cover the piano instead of guitar el sound. example : https://puu.sh/IyTlA/7f39ac7294.png
or
you also can ignore the piano sound and focus to percussion sound, bcuz previous part you are also focusing to percussion too. so you can just map the percussion and ignore the melody/piano sound. example be like this : https://puu.sh/IyTnj/38b62820b7.png
00:20:693 (20693|0) - you can change this note to be 1/2s LN to cover vocal. i fee a bit loss vocal feeling here bcuz you skip the vocal sound. don't worry to make many LN to your map as long as it suitable with the music. so it will look like this https://puu.sh/IyTrE/2111d10600.png
00:25:521 (25521|2,25693|2,25866|2) - imo this jack not really good to represent the vocal IMO. your structure map itself only make jack for 2x. but here you make it for 3x. it is make your structure a bit off IMO. sometimes consistency pattern is very important to keep the flow better. so how about to move this LN 00:25:866 (25866|2) - to col 1? then you can fill piano here 00:25:780 - so it will look like this https://puu.sh/IyTwl/8f3e04f831.png
00:45:348 (45348|1) - i think will be good if you can move this LN to col 1, bcuz the vocal pitch is down since here 00:44:659 (44659|2,45004|1) - . here is example : https://puu.sh/IyTyF/9a3d864d91.png
01:26:814 - add a LN or note here is good IMO to represent the vocal sound. it will feel like a grace note in player feeling. here my suggestion : https://puu.sh/IyTCs/f14fb631a2.png
01:30:521 (90521|1) - you can change this note to be 1/2s LN to represent the vocal sound. so it will look like this https://puu.sh/IyTDG/fb7d1d0959.png