Really liked the main mechanic, very interesting! Make us do this decisions, of using the bulb to surpasse a barrier, but making the plataform disappear. The gameplay opens the possibility of being amplified, with the light assuming other functions.
I would just give one tip, not by experience, but from trying to learn with videos gamedeveloper's videos from Youtube.
I think the first jump is already difficult. The first interactions with the game should be the easiest as possible, just to get along with a new dynamic.