I tried your game a bit and I like it a lot, and think it has a lot of potential, I would just offer a few criticisms that might improve it:
1) Your writing style is too verbose for the purposes of the game. It would benefit from some simplification to make it more concise and easier to read.
2) Linked to one, a lot of times your paragraphs take an entire screen and then overflow into another screen for a line or two. Making it more concise and editing it, with paying attention to how it will appear in game will make it a much more polished and more enjoyable experience.
3) Same goes for the dialogue - while I understand most characters are nobles, and should speak in distinct style, making the speech more colloquial, at least in informal settings, would greatly increase verisimilitude.
4) I like your maps, but often I feel they are too cluttered, and I find there is only one path through the map when it makes no sense to be so, making it feel claustrophobic.
5) Battle system seems to have potential to be very deep, just afraid it will become too complicated. In RPG maker with a bunch of small icons its hard to realize which effect is in effect and when it will expire.
6) A lot of your detailed world-building is put in front and optional and does not have a good rhythm of presenting to the player. The best way I can explain this is through an example. At the beginning in the library you have an opportunity to read about all the gods in the pantheon, each having a dedicated large section of text. But later on, you enter into a sanctuary where you can interact with various shrines, and get a short, one-line explanation of every god. It should be the opposite; first giving the player an easy to digest quick explanation and then deepening it throughout the game.
7) Also, speaking of the library, and it really underlines the point 1) - just contrast the library in TLS, and how much more effective the text there is with characters quickly summing up what the player should know compared to your text sections.
But other than that, it shows a lot of promise and I hope it will be a fun ride. Good luck!