Unzip the downloaded file and place all those files into your Sims 4 Tray folder, which can be found at
Documents » Electronic Arts » The Sims 4 » Tray.
Don’t forget to download all the custom content listed. Otherwise, your sim won’t look like mine.
Place custom content files into the Mods folder located at
Documents » Electronic Arts » The Sims 4 » Mods.
CAS Background: https://katverse.com/category/custom-content/cas-background/
More CAS Presets mod: http://databus.blogspot.com/2017/12/the-sims-4-mod-more-cas-presets_12.html
No EA eyelashes: http://cienzroza.tumblr.com/post/160017930275/no-ea-eyelashes
3D eyelashes: http://kijiko-catfood.com/3d-lashes-version2/
Face contour: https://katverse.com/custom-content/makeup/
Feline look eyeliner: http://www.jomsimscreations.fr/makeup-sims-4.html