In some quests with multiple layers, the fifth layer, the sixth layer, or both have been used to further enhance the scenery. Opaque, non-opaque, and translucent combos are placed on such layers to provide visual effects: ambient lighting and shadows in a forest, ceaseless rain around a murky swamp, sand blowing about in a desert storm, snow falling on cold mountain trails, clouds at high elevations obscuring narrow mountain paths, and haze and shadows in dark dungeons.
What I seek right now are scenery elements pertaining to the Twilight Realm from Twilight Princess. I am about to construct a quest/overworld/dungeon set in the Twilight Realm, and I require such fifth/sixth layer elements to provide the surreal, sublime environment of the Twilight Realm besides dark grass, trees, dungeon tiles, etc. I have yet to play Twilight Princess, so any accurate elements of the Twilight Realm, especially from those familiar with the game, are welcome.
I intend to use a Classic Tileset but can adapt elements from a more modern tileset without too much difficulty.

