Ruddy Basin -- Aurora Field -- Elthia

Ruddy Basin:
The ground is a reddish orange stone with black streaks within the rock (veins of another material) similar to the Mesas out west. The land will dip down slowly, arch back, then dip down slowly again (can be compared to the spiral staircases seen in most castle RPGs). It is a bunch of circles inside of each other and at the bottom of the staircase (which will slowly shift from the sandstone above to a pale blue/grey stone) you reach a whole that drops you into a huge plain of dull green grass.

Aurora Field:
When you enter, the north of the plain will have a blocked-off-by-plants tunnel and the south end will have a tunnel leading to the town of Elthia. It will stretch out forever in every direction, with huge monster veins made of limestone. The plain itself is mostly dark, although there will be luminescent flowers everywhere giving it more of a twilight feeling than night. These flowers are about two times the size of the characters with 3 thin and long petals shooting off into the ground (without much light, they've adapted to use the petals as extra roots rather than for photosynthesis). The flower glows rather brightly giving it the twilight feeling, but it also attracts subterranean beetles which will attract travelers. The color of the flower will range from dark purple to light pink, the color of the stalk will always be a very pale green, almost white. Put in layman terms this is a plain enclosed on all sides by a black shiny material (walls/grass covered cavern). The ground isn't perfectly smooth, it rolls up and down slightly and the grass is slightly swish-y, moved by a breeze (which will also blow around the characters clothing). In the eastern side of the plain (which will be farther from the stairs then the western) will be the Worm Hole. The enemies in the area will be mostly worm-ish, and the Worm Hole is basically the nest.

Elthia:
The tunnel you travel through slowly becomes less rock-like and more structured. As you progress through the tunnel, the floors become smoother, and polished to an almost metallic sheen. Inset in the walls are glowing pale pink cubes that emit light for the city. After travelling some ways through the tunnel system, you come across a wall of perfectly flat water leading into the aquatic world of Elthia. You can breathe the water perfectly thanks to an enchantment on the city. The actual city is inside of a huge black void, the "inner sea of the world". It's encapsulated by a huge crystal orb, and the buildings are large silver structures that are built somewhat haphazardly throughout it. Some are stuck on the ground, while others float. The buildings are shaped like eight-sided diamonds, with one or more faces missing for doors.