"Very philosophically-musing Yukari" is hard to pull off. "Very philosophically-musing Yukari who's SO TRAPPED BY HER OWN LOGIC that (amongst other reasons) she cannot properly convince herself she's dreaming despite all the obvious hints that she must be" is even harder to pull off, but you nailed it perfectly.
Fantastic ADV game with a lot of fun musing, whilst still telling a really sweet story about Yukari's inner subconscious and how her desires clash with her presentation. A standout entry, and easily one of my fav touhou little fics period, let alone games.
(Also, please let me know if you have like a writing page/VN page or something like that, I'd love to read more of your work!)