I really like this stuff, but I can't help but notice that the SE examples happen to look younger/healthier in appearance, than perhaps some of the other samples.
In combination with the fact that SE is correlated with fluid movements and alertness (signs that could be correlated with age/health), it could be good to have some older/unhealthier looking SE samples?
i've noticed this demographic tilt in the samples too. inversely the high Si samples collected so far are older on average. i think physical effects of aging are skewing which samples come across clearest (are most selected for), iow older Si users will stand out more and be especially obvious from how aging exaggerates Si slanting edges and indented sockets. the inverse will be true for younger Se users.
i'm not exactly sure what type she is (SeTi? FeNi-Se?), and i imagine there's been some plastic surgery which obscures some things, but i think i see clear Se vultology here for one older example:
i also think (in a very general sense) that age is in fact positively correlated with Pi use and negatively correlated with Pe use. So as people age they will actually become more and more reliant on Pi, and less so on Pe, regardless of native type. Again i mean this very generally, many individual cases may follow different patterns. i myself have become more Pe heavy with age as it's my polar function. Pi leads integrating Pe feels sort of backwards, like growing into childhood.