This actually looks pretty cool! Honestly, after playing DDLC years ago, I became such a sucker for Renpy games that make use of physical .rpy files, and I really love the way you're doing it for this project!
The story thus far is really intriguing, I'm thinking I'll keep a close eye on this project to see how the Subject's story develops over time!
I absolutely adore your art style! Not only does it just look really good, but it helps establish the perfect tone and ambience for the game, too!
I hope I'm not overstepping by saying this, but if you ever need any sort of help with this project, message me on Twitter or something! This game is honestly super cool, and I'd be glad to assist in any way possible. And if not, that's totally cool too!
I wish you nothing but luck in developing this game!