00:15:348 - 00:28:371
00:30:232 - 00:43:255
Density of them should be lower according how the song intensity going, they should not be denser than kiais and the previous part (00:07:906 - 00:13:488 )
For the first part I would suggest only consist with 2/1 rhythm and one 1/1 for the vocal at 00:20:930 - , like:
https://cdn.discordapp.com/attachments/709366576448798750/1069126962884378747/image.png
For the second part you could have 3 1/1 triplets in it max