[ddrdrck_]

> People look pretty serious but that's just because of the technology pf photography back then

This is a known misconception. People on old pictures are not smiling because they liked it this way, not because of long exposure times. Same for paintings. Except for Mona Lisa, you were supposed to be dead serious when being immortalized on picture for generations to come.

[gitgud]

Sounds similar to police mugshots, you don't want to be smiling or too happy as future generations may mock you...