The artwork is fantastic. That said, I think I missed what to do here as part of the introduction which left me lost for the first couple of tries. I think clearer onboarding guidance or a tutorial would be really useful here. I kept being distracted by my O2 meter getting low too as I was trying to figure out my first steps, too, which I can see as an essential part of the gameplay, but it might be a mechanic worth introducing a bit later in the game after teaching the player the core mechanics.