I earnestly request, in order to avoid conflicts with Skyrim and third-party mods use for new meshes and textures subfolder Skywind.
In [RELz] Skywind Meshes Compile [Updated 03 December 2012], the folder is created and the structure of it. Just as it is not recommended to use textures of Skyrim, if you do usethe texture, please use not it, but a copy of it, which should add in Skywind subfolder.
See also:

I fully agree with the
I fully agree with the request to place content in a beter folder structure.
The current file structure is a total mess…
Dropping random meshes and textures into the Skyrim Meshes and Texture folders has to stop.
NOTE:
All .NIF .ESM and .ESP have to be redirected to support this new folder structure.