The phrase "new customizations" refers to making changes or modifications to something in a fresh or different way, according to one's preferences or needs. Full definition
Also, as you play you gain experience and level up unlocking new customization options for your avatar, which can be either male or female. (thevrgrid.com)
The game also features new customization features, which aren't really as deep as one would like, but do a nice job. (glitchcat.com)
You can also learn to paint, play an instrument, and unlock tons of new customization options and playable prisoners. (theswitcheffect.net)