Definitely this one. Maybe I am thinking too much into it, but it feels like the closed door represents how many people view beauty from the outside but don't live in it and it's reality or enjoy it for what it is. I hope that made sense. haha.
Oh I've never thought like that way. But it really makes sense. In reality when people go there to see the exhibitions normally don't see this with open eyes and soul because it's a bit hide from the zones with more activities.