I wanted to make the Cavern strange, slightly out of place in Vvardenfell. As if the Azura's Realm, Moonshadow, is so very close that it shines through. Or as if this cave itself belongs to that Realm.
The Cavern of the Incarnate and the Azura statue meshes are replaced with bump-mapped ones, there are also flowers, grass and tiny fireflies. I changed armor and clothes on some of the ghosts, so that now an ashlander wears ashlander clothes, a warrior of the Temple - Indoril armor, etc.
Lightning in the Cavern has been changed in order to make glow-mapped meshes to stand out better.
http://static1.nexusmods.com/100/mods/100/images/42860-2-1384698973.jpg
http://static1.nexusmods.com/100/mods/100/images/42860-1-1384698973.jpg
http://morrowind.nexusmods.com/mods/42860/?
There is also optional download which includes pluginless replacer of the cavern and the statue meshes only.