I mean, by nature of the photo, she’s being set up to look cool. The others are all doing one thing, which is essentially bragging (in a sense. It’s a tradition based on judging/measuring wealth of the one who gave them the ring), while she is self-aware enough to look like she’s poking fun at herself, while also proving she’s above the tradition on display.
This is a one-photo story where she’s set up to be the hero. Not to mention the color differences, the others have their hair down/done while she has her hair pulled back. It’s almost too-set up to make her look awesome.
You've been too sober for too long and it has affected your judgement. Which one will it be, sport? Moonface, Grandma or the skeletal ghost of benedict cumbersnatch?
Seems like they're all willing to pose like that for a picture. Do you think girl in purple came up with the idea and executed it all on her own? Looks to me like she had at least three (maybe four, depending on who's taking the picture) equally fun friends who also thought this would be hilarious.
They’re all willing to pose but only one of them is being self-deprecating in the picture, the others are getting to show off - which is fine, nothing wrong with that - but the only outlier here is the girl with the beer so we don’t really learn anything about anyone but her.
Speculating on motives is pointless, I could say it was the idea of the most recently married one of the three who’s being a removed to the girl in purple, and purple felt pressured into doing it because she always gets harassed for being “no fun” or something.
You are making a lot of negative assumptions about girls you do not know. To me, this looks like a funny spin on the "omg look I'm engaged photo" (which there's nothing wrong with, by the way, even though you claim it's for attention. What's wrong with that? Sometimes things happen to people and you want to share. So what), where four friends happen to be engaged at once except one, so they're taking a silly photo they all agree to be in.
Your thinking smacks of misogyny in that you're assuming that all of these girls are being horrible to each other because of some stupid assumption society has about that being "just how groups of women are". It's not true, and it's stupid.
I made no negative assertions, just pointing out that speculation is useless because you could make up any situation that results in this photo, and that the only thing we can realistically conclude is that the girl in purple is ok with this photo existing, and her friends are married.