I tried to start making one during summer break, when I had more free time, but now that I'm busier, it can be hard to even play AC:NL at all as much as I want to -- let alone do this side project of villager house exteriors. I also echo the sentiment of mariop476; something like this would be great as a collective effort, but it's difficult as a solo project, having to track down villagers in dream towns or reset an extra gamecard over and over (both of which I've done).