they all have different facial features, i dont know what the argument is here. the younger people still have baby fat in their cheeks, they're going to look younger. dva, kiriko, and anran all have different eye shapes. tracer also stands over pretty heavily in ur example
Doing face studies of the fem overwatch characters to who actually suffers from SFS (same face syndrome) and yall tell me if you can tell whos who here (2nd image)