Except for the cloning tool duplication, but I doubt that will stand out when watching the episode.
In regard to what? The matte painting or the CG space creature?
If you're referring to the matte painting, it was done by hand by the classic style matte painting master Syd Dutton in his shop called Illusion Arts (Syd learned from a real old school matte painting master and TOS matte painter Albert Whitlock). So that's only an apt term if you're referring to the digitally rendered space creature