That's interesting. Yes, the high conscientiousness has the most noticeably different bone structure compared to others. I actually don't like it, I think his jaw is too large and his browbone is too prominent. But you liked that one better than the others. We have different impressions
There's subtle differences (well, at least to me, and to some other responders on this thread). But not everyone sees faces in the same degree of detail.
Some people even can't tell any faces apart (imagine what living with that must be like
) and there's a sliding scale between those cases and strong facial recognition. Faces actually have such tiny differences that human brains are wired to be extra-sensitive to faces, particularly. Otherwise we wouldn't be able to tell each other apart.
But anyways, we may not see the images in the same detail.