A catwalk model has been revealing the truth about exactly what goes on behind the scenes of photoshoots and runway shows by re-captioning her Instagram images.

Jazz Egger – a London-based model who appeared in Germany’s Next Top Model, took to the social media platform to reveal what actually happened when the photos were taken, using the hashtag #truthbehindthisshot.

On one of the images, the 19-year-old explained that her agency had said her “hips were way too wide” and told her to slim down if she wanted to walk at London Fashion Week.

The Austrian model also told her fans that she only kept her Instagram account because casting directors had started asking how many followers she had, “

In another post, Egger detailed the lengths she had gone to prepare for London Fashion Week, explaining that she “didn’t eat/drink salt, sugar, fat and alcohol for months” all to keep her acne from flaring on the day of the show.

The model revealed with a caption on a makeup-free selfie, that her motive for re-captioning the images was to promote acceptance of “natural” imperfections within the fashion industry.

Egger spoke about spending hours concealing her skin, while her mum would tell her “Don’t worry, nothing can ruin a beautiful face”.

“So many of you thanked me for being honest, especially when it comes to makeup and photoshop,” she wrote.

“So listen up: It’s crazy that “imperfect” skin is not socially acceptable, when most of us suffer from it. Let’s try to make it a little more normal.”

Egger encouraged her followers to post a makeup-free selfie regardless of any scars or pimples and tag it #NothingCanRuinABeautifulFace.

“We must stop seeing natural things as blemishes. Don’t let your insecurities stop you from being confident.”