Also worth mentioning those amazing cut scene art CG and the fun and challenging puzzles.
The story goes swiftly never really over explaining things and letting the context of the situations talk for itself. it may be just me but the story really grabbed me tight until the end! Never knowing who should I trust, what are some of those items for and rethinking all my opinions after certain plotwists.
Now, for a little of constructive feedback that I hope you don't mind and I did take in mind this is your first try at a game (Congratulations on that btw!).
-I don't know if it was a bug or not but the game has no music, just sound effects and even for a demo I think not having music really takes from the great experience this game is.
-The water sound effect at the end persist even after leaving the Garden.
-A text sound always adds so much ambient to games that rely on a lot of character conversation, I believe RPGmaker has one included, I think it's called "PlayMsgWndCharSeMZ.js" or something like that.
Again I know this is your first game and a DEMO and you probably already considered and solved all this issues but better safe than sorry right?
I'll be playing the rest of the endings off-cam and I for one wish you all the luck in the world with this project and will wait patiently for the full fledged release of Weeping Rosemary.
Keep up the good work!