The extremely detailed Texture Pack and use Connected Textures. All textures takes from the game by a dumping and adapted to Minecraft. I change about 90% of all block textures (work still in process), a lot of objects. Many blocks has a different textures for different sides (sides, top, bottom) and consist of 4-16 pieces.
With this texture pack you can build your own Lordran. At least: Undead Asylum, Firelink Shrine, Undead Burg, Undead Parish, Sen's Fortress, Anor Londo, Demon Ruins.
Demonstration video of the map imitating part of a location of the Undead Burg created especially for of texture pack:
Old video of a beta of textures pack. It is useful for that it is possible to see textures of Anor Londo: