Would be amazing if you did an Urban thing, where you could generate a street (with connecting homes) or a Tavern. Not to mention exterior dungeons with Underbrush and Trees. Doesn't have to be really chaotic.. just like larger corridors that are not necessarily entirely straight. You know like a 3tile wide "corridor" of which some are blocked out by bushes or debris, to give dungeons a more "crumbled" feel. Some vine tiles and such, to have vegetation growing into the dungeon. It could be a layer, like water. To have mushrooms and growth.