I find it a bit confusing on whether or not a BG is necessary for every panel. I've heard advice just to draw it for an establishing shots and to occasionally remind readers of the location then do color gradients for simple talking head panels. It sounds lazy, but I realize I've read comics that do that and it completely flew over my head, not affecting my enjoyment. Like, if 2 characters are chatting outside Taj Mahal, would I be wasting my time drawing it from different angles for every panel?
I had a comic that took place at a school, which tend to have beige/white walls and floors. I think the constant white and grey may have been off putting, but I'm still not sure about what I should've done about it.

