It would be neat to make it like an indoor place (such as a shop or whatever).
Like in some RPG's you go in a building and it's like an image of the person and a background of the store, and it uses a menu system so you can buy/sell/talk or whatever. Kinda like a lot of gameboy RPG's.
It would be neat to do that with Graal, except that you could walk around the store, like walking up to the counter, or looking left and right to see/buy merchandise on the wall shelves.