will the customers have different appearances?
Viewing post in Isekai Parlor Simulator v1.5.1 (R18) comments
Different customers appearances (in sex anim I guess you want to mean, as idle customers already have different appearances) means a different layer for every single animation for every race which a huge workload for poor "value".
Not planned for the near future and it's not a definitive no, but definitively not into our priority list.