This was a fascinating concept, and I think there are many good ideas here to explore.
That said, there's a number of things that stood out to me that could benefit from some revision:
- The visual design is gorgeous - I particularly love the backgrounds! - but it's slightly ruined by the large paragraphs of text, mainly when it overflows the text box. Breaking up some of the dialogue into smaller chunks would benefit both the presentation and accessibility.
- Speaking of accessibility: The typeface is a little too small. Increasing it by a few sizes would help!
- This could really benefit from an editor. There are a lot of interesting concepts presented here, but the presentation & dialogue are too convoluted. It doesn't read like two (or more) people/creatures talking, but more like they're quoting a textbook on philosophy. Many of the concepts you explore could benefit from easing into them gradually - perhaps as the characters travel across the different landscapes?
- To continue from the above point: Was your plan to make this more of an interactive fiction or visual novel with choices? I wonder if it would have been good to implement more choices (even non-essential ones), where the main character/player can explore the concepts they want to learn more about at will.
- Additionally, there's not a lot of distinction between characters other than their sprites. Consider adding things like accents, terms, quirks, repeated phrases, simpler language, etc. to really make your characters stand out from one another.
Like I said, I find this game fascinating, but it's held down a bit by the presentation and writing. Tightening these up would really make the game stand out. But for something made in a week, you should be proud of the work!