I like the main idea of this game, simple but original, and I think it aligns well with the theme in terms of narrative. I specially liked what you did with the death screen, it gave me a little laugh the first time I saw it. The visuals and audio are very appropriate for the game (again, specially with the death screen). That being said, I think the green part of the UI (where you see the player and the obstacles) should occupy more screen space, since it's the part of the screen where all the gameplay happens.
Overall nice work. Hope you keep up the good work