The idea is staggeringly lovely and new! It makes the gameplay much more thoughtful, and ties neat little riddle-knots into your brain, trying to figure it out.
Nonetheless, I think it's a bit too "deep" and "tragic" for me with this sad female voiceover and slow piano music. Yet somehow the colour-palette is so bright in contrast: It's "Sad Story" vs. "Blue sky and juicy green hills!". It puts me off a little bit.
You could make the game as a whole "darker" to fit the tone.
Or, what I would suggest: You could make an alternative version, with a nice story where a world was shattered by some sort of evil power, and a little hero has to go and find the source, guided by a helping spirit. It would be less original and less deep, but overall more fun.
In a nutshell: Absolutely fantastic work, teensy-tiny bit of improvement somewhere along the line and kudos to you!