This is literally what happened to "Lenna" - the image didn't celebrate or honour her as a person. It was an image protraying an unrealistic "beautiful thing". People didn't even know her real name, or what she's achieved as a real person.
It's perfectly reasonable and rational for women to say this makes it harder for them to be perceived as being equals.
Or the fanservice aimed at females in current-day shows like Riverdale where these hot guys throw off their shirts at the hint of an opportunity ?
This idea that it is somehow wrong to appreciate and find pleasure in the physical appearance of people is something I find very hard to understand. Are we going to ban makeup ?
Also consider examples outside of work, like dating. The tall, handsome, muscular guy is more likely to be perceived as desirable even though those traits don't necessarily correlate with what makes a good boyfriend. A man in search of a partner might feel objectified if his potential partner had posters of good-looking men up on her wall.
[1] The Glass Escalator: Hidden Advantages for Men in the "Female" Professions https://www.jstor.org/stable/3096961
where these hot guys throw off their shirts at the hint of an opportunity ?
Because it's a test image not a novel.
Unrealistic?
It's a picture of a woman. What's unrealistic about that? That she's good looking?