The photos are in order of the days of filming, but you never know what order they are shooting it, so what happens is a big guess. I love guessing so here is how I see it so far. Carrie Bradshaw has become a dementor and is trying to suck the soul out of Mr. Big with a dementor's kiss.
After successfully completing her mission, Carrie strolls the streets looking for more outrageous fashions and someone who wants to have sex with a 40ish single person who acts 20.
Not realizing that Mr. Big didn't have any soul to begin with, he appears fine and wants to get his revenge on Carrie for trying to suck his soul because she didn't know.
When realizing he is still alive and has no soul, Charlotte begins crying because she always finds men with lots and lots of problems and for once would like to find a guy with no soul and and who isn't as high maintenance as her.
Completing her quest for some really bad fashion, Carrie licks her lips in anticipation of someone getting to close to the growth on her chest and it sure as hell isn't her breasts. Meanwhile the elderly women in NY are wondering what the hell she's wearing, even though they themselves are wearing work boots more suitable for a construction site.