00:00:690 - 00:08:074 This first section uses jumps randomly. I would suggest you find some sort of pattern and stick to it, Example: jumps at 00:00:690 (690|3,1151|2,1613|3) throughout the intro.
00:08:074 - Here instead of using double LNs, you can do triples/doubles with one LN, that way you can make them more varied and not use the same LNs for different sounds.
00:13:613 - Why are you changing it from jump-trills to jump-jacks here? Sounds like its using the same sounds to me. Should probably stick to jump-trills to fit with its difficulty name.
00:22:459 (22459|3) - Ghost note.
00:22:613 (22613|1) - ^
00:32:074 (32074|2,32074|0,32228|3,32228|1,32382|0,32382|2,32536|3,32536|1,32690|0,32690|2,32843|3,32843|1,32997|0,32997|2,33151|2,33151|3,33305|1,33305|0,33459|2,33459|3) - Why are these doubles now? They were singles before, you can map the drums as well if you want to make it more difficult.
00:36:997 (36997|3,36997|0,37305|2,37305|0) - These should be singles, maybe even LNs.
00:45:382 - Missed note? If not, you should be consistent with this and map it whenever the guitar + drums stops playing, example: remove this note 00:47:690 (47690|2) (If you want to change this, apply it to the rest of the section)
00:52:382 (52382|3,52382|0,52536|0,52536|2,52690|3,52690|1,52843|0,52843|2,52997|1,52997|3,53151|2,53151|3,53305|0,53305|1,53459|3,53459|2,53613|0,53613|1,53766|3,53766|2,53920|0,53920|1,54074|2,54074|3) - Think doubles are too much at this section, especially for a hard diff, would suggest single note jacks or double to single note jacks
example:
00:56:074 - Same as before; Here instead of using double LNs, you can do triples/doubles with one LN, that way you can make them more varied and not use the same LNs for different sounds.
01:15:613 - Missing note?
01:15:920 - ^
01:17:536 - ^
01:18:613 - ^
01:20:305 - ^
01:21:613 - This shouldn't be a triple. At max a double, but even that would be stretching it.
01:23:843 (83843|2) - Ghost note.
01:23:920 (83920|0,83920|1,83997|3,83997|2,84074|0,84074|1,84151|2,84151|3,84228|0,84228|1,84305|3,84305|2,84382|3,84382|0,84459|1,84459|2,84536|3,84536|0,84613|1,84613|2,84690|3,84690|0,84766|1,84766|2,84843|3,84843|0,84920|1,84920|2) - Why? That's not too big of a difficulty jump, make it a jump-stream not a jump-trill. + There's not even a constant amount of drum its for it to be a consistent jump-trill. At most that's a broken jump-stream.
01:25:382 (85382|0,85459|1,85536|2) - Ghost notes.
01:26:690 (86690|2,86843|1,86997|0,87151|1,87305|3) - Why is this all of a sudden not dense? Wasn't this the same sound you mapped a jump-trill to. change that to a single stream or a broken jump-stream.
01:27:459 (87459|1,87459|2,87613|2,87613|0,87766|3,87766|1,87920|1,87920|2,88074|3,88074|0,88228|1,88228|2,88382|2,88382|3,88382|0) - Think this would be better if it was a light jump-stream.