Only base game maxis things + listed custom content are used.
We have these: Sims4 Limited Edition and Holiday Celebration Pack

Skin (S-Club) *Click*
Hair (Alesso) *Click*
Hair (Nightcrawler) *Click*
Eyebrows (S-Club) *Click*
Eyecolors (S-Club) *Click*
Eyelash (Kijiko) *Click*
Eyeliner (Screaming Mustard) *Click*
Eyeshadow (Screaming Mustard) *Click*
Lipstick (Sintiklia) *Click*

-Top (MFS) *Click*
-Lace collar (S-Club) *Click*
-Hat Santa (bukovka) *Click*
-Earring (Starlord) *Click*
-Boots (MJ95) *Click*
-Shoes (MJ95) *Click*


To install the CC:
Download the CC from the links and make sure you download them to your
My documents/Electronic Arts/The Sims 4/Mods folder.

Sim Model to see it in your gallery;
-Please look at the picture *Click here*
-The first, is while in the Map view, open the Gallery, and choose "My Library"
-If you don't see any sim, expand the "Advanced" category and check the "Include Custom Content" box.

Credits: TSRAA and Kijiko