Blue Streaks of Happiness (Deamerai) - 7/10 (FR)
Chart seems sound from a few playthroughs (some tasteful use of repetition as well) and the layering sounds mostly apt, but... the minijacks are so ridiculously hard. The dense jumpstreams are mostly chill (though the parts with short 16th split jumptrills get a bit rough at times, but still not as hard as some of the minijacks) and the 32nds range from chill to tricky, but most of the minijacks stand out by being run killers almost throughout.

I'll highlight two particular sections: 1:22.899 to 1:30.616 killed off a lot of my runs, and and some of the minijumpjacks in the 12th polyrhythm section at the end as well. For the former case it's just that there's just too much going on in those sections that split-handed jumpjacks cause a disproportionate transitioning difficulty in-and-out of jumpstreams (the [12] and [34] jumpjacks within the jumpstreams are fine). This is especially true when the pattern coming out of the jumpjacks have some sort of hand bias (OH minitrill, etc.) and the latter has a similar issue: the polyrhythms feel quite split rolly, and some of the jumpjacks starting on [34] or [12] force a wristjack motion.

Other small bits that I feel are a bit much include 1:58.644 (split-handed minijack into OH trill) and 2:12.358 (same thing), but I would consider this lower priority. But beyond that, the chart is sound and is alright to play through. That said, the minijacks that I pointed out really stand out in a bad way and I think that it's best that you change them to something more lenient. I'd suggest [12]/[34] jumpjacks for the jumpjacks within jumpstreams, non-[12]/[34] jumpjacks for the polyrhythm section, and for the smaller cases you can just make the transition out of the jumpjack easier or use an easier jumpjack pattern. As is, I would absolutely dread playing this in an OT. This would be so frustrating to grind out, but maybe that's what OT organisers want D8 to go through because D8 players never have nice things. There's potential there regardless.

Blue Streaks of Happiness (Deamerai)

- Offset's mostly fine.

I'll spare the technical details of this review and focus only on playability concerns for this chart instead. It seems like this is intended more to be the final round of D8, given the chart has a lot of incredibly abrasive and dense patterns throughout.

1:15.237 - Personally would break down the column 4 anchor, especially it doesn't appear anywhere else in the file when you're doing the 32nd triplets.
1:23.435 - Right hand is a bit yikes here - you can do 2[14]2 instead of 3[12]3 to ease this tension up. (same as idea as 1:30.295, but mirrored)
1:37.163 - I quite like the repeated motif here.
1:59.019 - Would suggest moving it to column 3 instead of 1.
2:12.733 - Move to column 2 instead of 4.
2:58.801 - ow
3:15.478 - I'd probably not collide this 3/64th minijack on the same column with a 4th note on 3:15.625.
3:21.410 - This jump has a different pitch than 3:21.196, would suggest mirroring it and the subsequent trill after.
3:49.484 - This is a stupid minijack collision lmao
*4:05.342 - This jumpstream section isn't as punchy as the first half ones, so having jumps every 8th felt strange to play especially if it's reserved for the synth only.

This chart is goddamn intense and I think it plays......... alright. I just think that it's very draggy even though the second half has some interesting sections, though I figured it would be a massive pain in getting through the first half without taking too much damage.

The *'d point certainly needs further clarification since it's the only jumpstream section that decides to increase its layering to jumps every 8th pretty consistently,so I'll FR for mostly that and general toning down on the spikes for playability. [7.5/10*, Fixes Required]

Mipha has given this a look and he said that he was okay with them, and I'm personally okay with these changes.