00:37:544 - This jumpstream is a bit weird from a patterning standpoint but we can fix that. I see that you wanted it to be even on both hands, but it ends up being more awkward to play than anything, so I rearranged it so it's more comfortable to play. In addition, I made 00:37:805 a triple to add a bit more emphasis to the sound here since a double is a bit weak for a stronger sound. I provided an image of how I would arrange this jumpstream.
00:37:935 -> 00:38:196 You got the right idea by making to notes follow the melody, but we can move the notes a bit to follow the melody a bit closer. We can shift back 00:37:935 & 00:38:000 by one column since these are higher of a frequency, especially compared to 00:38:131 & 00:38:163 which I would move so the first not is in the same col as 00:37:935 but have 00:38:163 be on the second column instead of the 3rd like we did with 00:38:000. Then we would place 00:38:261 on the first column. In case you are confused, I provided an image for reference about what I'm talking about.
00:38:783 -> 00:39:435 The excess notes here kind of take away the emphasis you have with 00:38:718 so as a solution, I would recommend removing the notes in the section except for the following: 00:38:979, 00:39:109, 00:39:239, 00:39:305, and 00:39:370. This would also server as some diversity in-between all the handstreams for a beginning section at that.
The main sound i follow here is the persistent one that you can hear in all the section, which i used to make a stream pattern to make less empty overall. If I only mapped the notes you said it would feel pretty empty and an awkward feeling to play 00:38:326 -> 00:38:718 and after that having almost no notes. Tho you still made me realize that 00:39:305 -> 00:39:435 burst are only 3 notes instead of 4
01:03:370 -> 01:04:152 - This section would benefit from just being chordjacks instead of jumpstreams. It would differ from all the handstreams and jumpstreams from not that long ago and it would at least help 01:04:152 -> 01:04:413 stand out more. I've provided an example image of what you can do if you apply my suggestion.