The phrase "after she posed" is correct and usable in written English.
It can be used to indicate a sequence of events where someone posed for a photo or in a specific situation before something else happened.
Example: "After she posed for the picture, the photographer adjusted the lighting."
Alternatives: "following her pose" or "subsequent to her posing".
Ms. Sigelman was struggling with the awkward silences that sometimes arose after she posed a question.
CNN dispatched Kathy Griffin after she posed for a photo holding a replica of Trump's severed head.
As Ms. Spaulding told us, after she posed, she got greedy and wanted to make the cover of Playboy.
Nearly two years after she posed for photographs with naked and shackled detainees in the dusty Abu Ghraib prison outside Baghdad, Pfc.
Having become lovers after she posed for him, they first travelled to Modotti's Mexico in 1923 and remained there for five years.
She also became an internet sensation after she posed for a selfie with the South Korean gymnast Lee Eun-ju at the Rio Games in 2016.
After her speech, she posed on stage with her cabinet ministers and other delegates, singing along as the national anthem played at the close.
After introducing a few songs, she posed for photos and signed autographs for the music industry folks in the room, who would help propel singles like "California Gurls" to song-of-the-summer status.
Though the producers excluded a contestant, Frenchie Davis, in Season 2 after it was revealed that she posed for topless photos that appeared on a Web site, they have allowed other contestants, including this season's finalist Ramiele Malubay, to remain in the competition after racy but clothed photos of them surfaced.
To get into an office building after hours, she poses as a maid.
More than 50 years after she first posed for Picasso, Angela Rosengart recalled with an excited shudder the raking scrutiny of those eyes.
