I really like the vibe, and the marble look is so simple but satisfying. I also got some Night in the Woods vibez but in a good way. The platforming takes some time to get used to, and I find it weird that I have to controll everything with a left hand, maybe put moving to the arrows? or allow rebinding of keys. It's a minor thing but it would be better I think.
And I really like the random pages and narrative interruptions. It could be something great! Keep up the good work, and hope you can finish it, developing it alone must be a lot!