I have been giving these pictures of Jack some more thought, you can tell a lot about people's personalities from photos taken when they are in their comfort zone. The most striking thing about PG himself is that he is in the back, above the folk in the forground, with his arms encircling them. It's a very dominant image, but not overtly threatening, he is clearly the alpha dog in the group and is very comfortable with that position. Nancy has a more submissive posture, in the background as well, mostly semi obscured. Of the two girls, Starlet is striking more confident aggresive poses while Angel is allmost shrinking. In a way it reflects PG and Nancy, where one is "daddy's girl" and the other "mommy's girl". This is contrast to eye-witness accounts of the girls in other encounters, where Starlet was described as clingy and angel more outgoing. I don't think that these two images are mutually exclusive though, since they deal with the girls in their comfort zone in one case, and out of it in the other. It isn't uncommon in cases of two siblings separated by a few years for the oldest to assume a more responsible aggresive role and the youngest to be more passive and freespirited. I think that is what we see in these pictures, while in situations where they are encountering strangers Starlet acts more defensively to proactively circle the wagons and "protect" the family but Angel acts in more openly, friendly manner. An observer might misinterpret this to mean that Starlet was shy and reserved, while Angel was not, but in fact the reverse would be true. This would explain the rambuncious behaviour of Starlet with Shayna, she is probably a pretty aggresive girl.
I'm curious how Jaycee fitted into all of this though. She would have been a sister, but much older than the other two. In normal families where there is a very large age difference between siblings, the older sibling takes on the role of an adult/quasi-parent, and this is probably the dynamic that happened in the Garrido houshold. Where was Jaycee when these pictures were taken? She apparently wasnt on the trip. Was Patricia still living in the house at the time? If so, she would have been bedridden, which means that she would have needed someone to look after her while the rest of the family was down at SF. Probably that would have been Jaycee, as the adult sister. If she was there all alone, with the run of the house for who knows how long, that is kind of interesting.
So many unanswered questions :sleuth: