They were dancing [...] in a space between a group of teenage boys in metallic corsets, and a young Asian couple [...], their colored hair extensions tangled together like vines. (1.19)
The partiers at the Pandemonium Club have a very unique sense of fashion. We get the impression Clary and Simon don't dress the same way, giving the Pandemonium Club an otherworldly feel.
[Clary] knew she wasn't beautiful like her mother was. To be beautiful you had to be willowy and tall. (2.50)
Two teenage girls sitting on an orange bench seat were giggling together. [...] Clary wondered for a moment if they were laughing at her. (6.38)
Clary's pretty insecure. We have a feeling that if the girls weren't cute, Clary either wouldn't think they were laughing at her, or wouldn't care.
"In my day, girls were robust, strapping creatures, not twigs like they are nowadays." (7.62)
However old she is, Madame Dorothea has a healthy view of body image. Clary, on the other hand, desperately longs to be a twig.
"Maybe I'm just a late developer." (7.76)
Here, Clary is talking about her lack of magical sight, but it might help explain her insecurity, too. Maybe she feels awkward in her own body just because she hasn't come into her own yet. She is only 15, after all.
Isabelle was exactly Simon's type—tall, glamourous, and beautiful. Come to think of it, maybe that was everyone's type. (9.46)
Says who part deux.
[Simon] wasn't looking at [Clary's] backpack; he was looking at her legs as if he'd never seen them before. (11.228)
We wouldn't be surprised if Clary had a tomboy style, until she puts on one of Isabelle's dresses confirming that yes, she is a girl, and yes, she does have legs. This isn't going to help deter Simon's unrequited crush one bit. Poor guy.
[Clary] recognized her mother instantly: Jocelyn, no more than seventeen or eighteen, her hair halfway down her back and her face a little rounder, the chin and mouth less defined. She looks like me, Clary thought dazedly. (11.96)
We wish this revelation would give Clary the self-confidence to realize that she, too, will age into an attractive woman once she's past her awkward teen years. We really wish she'd just get over her whole hang-up on appearance altogether, but at least this is a small step in the right direction.
"Demon hunting and fashion," Clary said. "I never would have thought they went together." (11.224)
Here's something we can get behind—showing your strength and taking charge, now that's hot.
Clary wondered if there were any ugly vampires, or maybe any fat ones. Maybe they didn't make vampires out of ugly people. Or maybe ugly people just didn't want to live forever. (14.183)
Jeez, reality check, Clary. Just because someone might be considered "ugly" (and who's to judge?), doesn't mean they have no other reason to live.
"[Isabelle] always wanted to be small and delicate, you know. She hates being taller than most boys." (17.75)