These are all criminals from the 1920s. What strikes me about them is how much they all seemed to value their fancy clothes.
Maybe the guy above is a partial exception. He looks like a natural-born bully, and might have turned to crime even if there was no money in it. Maybe he valued the classy suit because from a distance it gave him an air of civility. He would have delighted in luring the unsuspecting up close where he could reveal his other self.
His pants are badly tailored, but I'll bet few would have dared to tell him. And look at the size of that fedora!
It's interesting that in close up he chooses to look distinguished, and in a long shot he chooses to look like a tough guy. Look at the way he handles that cigarette!
Gee, this girl is especially tragic. With a few breaks she might have had a better life.