This snippet is a good demonstration of how complex first person narration can get. It looks like simple character description, but there's a lot going on.
Detail 1 + Subjective expansion: The narrator notices a small descriptive detail and then expand on it with a subjective observation from the narrator (a dress with flowers that aren’t much to look at).
Detail 2: Another descriptive character detail.
Judgment w/simile + Subjective expansion: The narrator tells us what the victim thinks of Detail 2 (dad: it’s like an angry mob), and then expands with their own point of view (narrator: it means nothing to me but a lot to him).
Modal note: Finally there’s this little modal note which reinforces that we are inside the narrator’s head with their limited knowledge and understanding.