Why would a girl feel pressured to look as good as an image that doesn’t have actual bones or organs or skin pores - not even fucking gravity.

If you can interpret it as an image of a woman then there is correlation. What they are sourced from doesn’t make a difference.

Do you think photoshopped images or makeup also don’t change perception and consequently influence beauty standards? Those are also not based on the inherent physical properties of the original bodies.