I see where you're going with this and it has potential, but I my opinion you could have taken this concept a lot further. Let me explain:
When I saw the words "poem platformer" and your concept sketch, I had in mind a kind of pseudo-rhythm game where words from the poem would be triggered by the player falling on platforms. So that way you get a kind of modular poem that the player could explore at their own pace. Maybe if the player falls on the platforms "out of order" they would get a scrambled verse, and they would have to fall again in a different way to get the "correct order". That would make for a great way for the player to explore the poem through different perspectives. Also some voice recordings for the poem would've really packed an extra punch in a concept such as this.
But as it is, it seems that you've set some hardcoded triggers after the player reached a certain height, which made the game feel more static than it should be. Also after the poem's recital ends, then the game just becomes endless falling with no meaningful actions to take.