I love the attention to details, like, custom UI, pointer, small things but adds value to the whole experience! Artstyle is kinda cute, voice acting sounds good! Main menu is really pretty and fits so well.
I'd probably go for more mysterious music, but this one is fine as well. I didn't realize there's a song with words in main menu :0 I realized it when I was about to quit. It's so cool but I'd make vocals a little quieter. Actually I'm listening to it while writing this comment ;D the voice is addictive haha
Oh if there's an option like that, I'd make dialogues start a little earlier (but I know renpy can be tricky when it comes to sounds :') for me it didn't see some of my sound files), so I wouldn't miss any sound.
"Go HMM yourself" got me LMAO ;D The whole vibe is so cool!