Place the files in "mods/update/x64/dlcpacks/mpluxe/dlc.rpf/x64/models/cdimages/mpluxe_female_p.rpf/mp_f_freemode_01_p_mp_f_luxe_01"

After that, just load in the game and use a trainer to find the earrings, they're in the same section where hats and glasses are.

Once you found them, enjoy!

Hope you enjoy this clothing mod, my peeps!
-EcLiPsE-