Congratulations on the 1.1 release! Having played the previous build I can happily say I never ran into any crashes or issues when playing this new build!
The artwork and dialogue is great. I really love how you incorporated the earlier timeline vibe with the pc98 protag design, differing character artwork, the LW small Remi design to align with the pc98 designs, and it all leads up to her not knowing English, it's a great joke. The mspaint credits art is funny and mirror the Zun sketch credit scenes. Rin being playable is appreciated, and you wrote her as such a sweetheart. Remi herself is also really kind when she can be properly understood. One suggestion regarding the Remi dialogue would be to have her speaking Japanese over the asterisks. Akin to a reversal of what we see going on in English. I don't speak Japanese, but it was a suggestion I saw proposed when I shared screenshots of the game in a discord server by a native speaker of Japanese. That might be a fun additional gag for anyone who spoke it or anyone who went out of their way to try to translate her dialogue mid playthrough.
With the adjustments from the former build including in the extra stage, I was finally able to each Flan this time, which was nice to see her art and dialogue, but me ever beating her would require a lot of skill on my part.
Outside of the charming art and dialogue, gameplay identity is another standout element regarding this. The balance changes from old to new build with a bomb restored on life is nice and to the player's benefit. Focus shots hit very strong with high power similar to bugged MoF Marisa levels, bosses melt, especially with Rin A or Marisa A. Reimu A and Marisa B focus damage felt a lot more tame, but I found myself running out of power and slowly chipping Remi down with zero power very slowly. It felt extreme on both sides. Patchouli is a strange boss as well. Her very first health bar feels a lot more tanky than any other health bar I've experienced in the game and I'm not sure if that was by design to mirror the vibe and ramp up of the library in base TH6, but she has A LOT of health or if it was potentially a bug. Given she seems to have the only time out spell in the game (unless Flan had one) that Patchy hp might be intentional, but it feels off-putting compared to every other boss health.
I was surprised I didn't encounter any minibosses in the extra stage when I remember being jumpscared by Meiling in the prior build but maybe that (and presumably patchy?) got shifted to the Phantasm stage mentioned in the patch notes.
Everything being said, I feel this game is very welcoming to new and inexperienced touhou players. Especially with casual mode being fixed. Touhou 6 has such a beloved cast with a questionable gameplay experience, so to have this game allow for people to engage with the cast in a new way is appreciated. Easy mode not being gate kept, casual being new player friendly. Remi and Flan are both pretty tough bosses given they have bomb immunity via Bat Time which also raises the skill demand out of the player. I know that the focus shot taking power aspect at play here will be polarizing for many people, especially series veterans, but I do find the concept of it interesting, over constantly being in focus mode 24/7 or something. There's some thought at play here. "Do I weave in focus movement without shooting for precise movements then unfocus to deal damage?" "Or do I just try to melt the boss my power be damned?" I do find it interesting enough to engage with, but some more under the hood with damage numbers need to be done as almost every single boss barring Patchy's first health bar flat out melts with specific shot types. I thoroughly enjoyed playing and will be sure to try extra more to see more dialogue barring my own skill issues. Fantastic work, I'm glad I no longer crash fighting Remi lol.
Lastly minor misc typos/text errors I noticed when playing:
Reimu opening probably shouldn't have sun capitalized.

During the opening Remilia conversation I believe this line of dialogue plays twice.

Reimu A ending has a few typos like with this Sakuya line. *asks, feeling, regretful

*collateral
*as her
Capitalize Looks
Reimu Extra seems to have an extra space between 'that' and 'need' at the end of the third line.
'It's' is missing the apostrophe.
Rin's player select screen has 'description' missing an r.
Missing a period at the end.
Rumia's name is still spelled with an R here in this conversation and you seem to have swapped to spelling it with an L universally outside of this one line of dialogue.
Weather is typo'd in the Patchy Rin dialogue.
Rin extra stage screen seems to have an extra space between 'the' and 'introductions' in line 4 and 'that' and 'Rin's' in line 5. Missing a period at the end of basement in the final line.
Opening Rin vs Flan dialogue has 'probably' typo'd.
Marisa opening seems to have an extra space between 'air' and 'is' in line 2. 
Marisa A ending- I think there should be a comma between 'Oh and 'it's'
There appears to be an extra space between 'missing' and 'from'.

