I was just thinking: Is it necessary for the art and the common adventure locales to match up in some kind of proportion? At the beginning of 4E there was a big thing about getting " back to the dungeon " as the default style of gameplay. Now, I do not think that it would be particularly good to overemphasize dungeon exploration when it comes to adventure design, but when it comes to the art in the core rulebook(s), I think I really would like to see the art depict that return to the dungeon. The artwork should be kind of claustrophic; you should be able to see the ceilings and the walls, and get a feel for how there is not a lot of room to move in plenty of places. If you cannot see the ceiling or the wall, it should be mean something ominous. There should also be wide open spaces within the dungeons too, but they ought to be the special scenes, where you fight the main villain, a giant monster, or find the big treasure, but not the common rooms.