I must say I was highly impressed, this game was something out of this world (similar to Amanita Design games i'd say) - I absolutely love the songs and the stories in the game!!
The fact that you made it using RPG Maker is even better, it truly shows that RPG Maker is very-very capable of high quality games and it depends mostly on dev themselves whether the game will be high quality or low quality.
10/10, hope you keep making these type of games, or any other genre, I played through one sitting and it was super interesting to see who was behind next painting