Honestly, Raven Brooks feels like a empty town as of the moment, isn't the town supposed to have people living in it? I think to breath more life into the world there should be a few of the following:
Cars driving around, like in HN1
Vandals walking around at night, maybe spray painting graffiti onto buildings or kicking over trashcans
(you know i have to suggest this one) Imbir wandering around after they get fed.
Skipper should also wander a bit after he's fed, but would stick close to the Mayor's house and also chase off Vandals and/or Imbir
More ambience to the town, like hearing people talking or animals
Depending on the time of day, lights in some houses would go off or on to show that yes people are in the houses.
At Night maybe you'll hear the Guest too...somewhere, but you can't see him. 
I also had a funny thought where if you're making noise on a house's roof, you can hear the owner getting annoyed inside. Like they let out a angry growl or even yell at you to quit it.