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/custom-content/cas-backgrounds/
Skin: https://www.thesimsresource.com/members/Milarasims/downloads/details/category/sims4-skintones/title/mia-skin-overlay/id/1372589/
Skintone: https://www.thesimsresource.com/downloads/details/category/sims4-skintones/title/skintone-set-v3/id/1346781/
Body replacements: http://luumiasims.com/post/152404590469/body-redux3-new-body-replacements-to-improve-your
No EA eyelashes: http://cienzroza.tumblr.com/post/160017930275/no-ea-eyelashes
Nose contour: http://www.maccosimetics.com/2017/01/nose-contour-hq.html
Defined nose: http://sims4nexus.com/?p=4813
3D Eyelashes: http://kijiko-catfood.com/category/the-sims4/ts4-makeup/
Nose mask: https://obscurus-sims.tumblr.com/post/158655406378/9-swatches-teen-males-and-females-hq
Mouth corners: https://www.thesimsresource.com/downloads/details/category/sims4-makeup-female-skindetails/title/mouth-corners-n03/id/1330957/
Baby hair: http://candycanesugary.tumblr.com/post/151192203125/baby-hair-eve-3-to-4-conversion-21-swatches
Hair: http://missparaply.com/skysims284.html
Eyes: https://www.thesimsresource.com/downloads/details/category/sims4-eyecolors/title/frs-kylie-eyes/id/1362404/
Eyebrows: http://alf-si.tumblr.com/post/145465235792/eyebrows-12-non-hq-20-colors-teen-young-adult
Eyeshadow: https://www.thesimsresource.com/downloads/details/category/sims4-makeup-female-eyeshadow/title/eltia-eyeshadow-n51/id/1369400/
Eyeliner: https://www.thesimsresource.com/downloads/details/category/sims4-makeup-female-eyeliner/title/bobur-eyeliner-08/id/1374641/
Blush: https://www.thesimsresource.com/downloads/details/category/sims4-makeup-female-blush/title/imf-miss-blush-n.17/id/1363426/
Lipstick: https://www.thesimsresource.com/downloads/details/category/sims4-makeup-female-lipstick/title/frs-lipstick-n22/id/1364168/
Nails: https://www.thesimsresource.com/downloads/details/category/sims4-accessories-female-rings/title/eumacia-nails-n18/id/1373107/
Shirt: http://tukete.tumblr.com/post/159938160108/goldie-shirt-recolors-custom-icon-thumbnail
Skirt: http://jordutch.wixsite.com/store4/outfits
Shoes: https://www.thesimsresource.com/downloads/details/category/sims4-shoes-female-teenadultelder/title/suede-pumps–greta/id/1318409/
Earrings: http://meeyou-x.tumblr.com/post/154155667941/simple-earring-7watches-do-not-re-upload-other
Choker: https://www.thesimsresource.com/downloads/details/category/sims4-accessories-female-necklaces/title/shay-choker/id/1340467/