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/
Skin: http://love4sims4.tumblr.com/post/154020045408/miko-moss-ellie-skin-by-miko-moss-this-is-a
Skin tone: http://noodlescc.tumblr.com/post/157420201179/noodles-berry-skin-colors-here-is-my-set-of-berry
Mouth corners: https://www.thesimsresource.com/downloads/details/category/sims4-makeup-female-skindetails/title/mouth-corners-n03/id/1330957/
Nose mask: http://pyxiidis.blogspot.com/2017/08/miscellany-2-another-grab-bag-of-things.html
Eyes: https://www.thesimsresource.com/downloads/details/category/sims4-sets-eyecolors/title/anime-eyes/id/1255655/
Eyebrows: https://www.thesimsresource.com/downloads/details/category/sims4-hair-facial/title/denise-eyebrows-n100/id/1355436/
3D Eyelashes: http://kijiko-catfood.com/category/the-sims4/ts4-makeup/
Hair: https://www.thesimsresource.com/downloads/details/category/sims4-hair-hairstyles-female/title/wings-os0713/id/1382664/
Face highlight: http://litttlecakes.tumblr.com/post/164492943169/heres-the-highlighter-i-was-talking-about-in-my
Face contour: https://katverse.tumblr.com/post/165197284792/face-nose-contour-ctr01-categories-blush-face
Eyeliner: https://www.thesimsresource.com/downloads/details/category/sims4-makeup-female-eyeliner/title/eyeliner-10/id/1385821/
Blush: https://katverse.tumblr.com/post/166252703447/kv-blush-5-shades-blush-category-custom
Lipstick: https://hapumsims.blogspot.com/2017/10/babyhapumlips12.html#more
Nails: https://www.thesimsresource.com/downloads/details/category/sims4-accessories-female-rings/title/matte-almond-nails-n06/id/1338552/
Dress: https://maretabuniketa.tumblr.com/post/166498731982/simblreen-gift-3-diabolik-lovers-beatrix-dress
Necklace: http://tukete.tumblr.com/post/158537852238/vintage-glamour-necklace-edit-my-mesh-edit-custom
Shoes: https://www.thesimsresource.com/downloads/details/category/sims4-shoes-female-teenadultelder/title/madlen-habu-boots/id/1327068/