Dungeon Keeper has a nice creepy atmosphere. The rooms themselves are simple, but the walls are decorated with creepy symbols.
In empty dungeons you can come across one of three possible demonic statues:
Most maps however contain sanctuaries, or hero dungeons if you will, where evil should not have spread to yet. There is very little for mapmakers to fill those with.
You can either leave them empty, fill them with the evil looking statues, or place useless keeper rooms which give the rooms the evil wall decorations.
What we need is some good-themed decorations in the game. This is very easy to do, as there are some placeholder statues already in the game and adikted editor:
When you download the KeeperFX GFX files you can edit these statues to look like something else, and import them into your game.
For example make a holy statue or an armour stand:
As almost everybody here makes maps, what kind of decorations would you like to see added? Do you already have a suitable image for this or can you draw?(I can't)