00:57:542 (1,2,3,4,5,6,1,2,3,4,5,6) - The contrast between these two sections seems extreme. 00:58:619 (1,2,3,4) - The sound is really strong here, so I think you could use a more difficult pattern.
01:26:157 (2,3,4,5,6) - 01:37:542 (3,4,5) - Isn't that a bit much spacing? It's not like there's a strong notes, so maybe you could shorten it a bit.
01:47:850 (1,2,3) - I think the difficulty level of the pattern is too easy for something with such a strong sound, I think you could make it a little more complicated.