I think fashions look different on different individuals because of their shape and how the material positions itself. We've had a few posts lately on what is appropriate for female children to wear in terms of skin-tight fashion. The shorts shown in the photograph have been carefully lit so that they just look like a filled in block of black colour in the middle. You can't see how the fashion would look when the person is walking, tying their trainer laces, lying on the grass.
The model in the photo is very slim with an athletic frame. The style might look different on a different figure-type. Only you know how your daughter looks in the outfit - but posters here cannot give an opinion on that.
I don't have a daughter, but if I had, I would at least want to listen to what my DH, if I had one, had to say about fashions and male reactions to them. We are frequently being informed that the reactions of males to sensually stimulating sights is different to that of women. Has this wisdom changed now? Is that discourse old-fashioned now? Are we saying that men are not quickly turned on by attractive healthily-developed females in 'spray-on' look clothing? Or are we saying, we shouldn't consider the impact of our clothing choices on other people?
I'm not a guy, so I don't know. But if I thought enough of my partner to have committed to them in the first place, I'd assume they probably know the gist of what they are talking about, and I'd want to ask them to explain and justify their attitude and to say what adaptions would make the outfit more acceptable, as they see it. I wouldn't want to dismiss a viewpoint I'm not in a position to understand or know about, first-hand.
I've seen some teenage girls of different ages in completely fitted 'spray-on' style stretch jump suits and I've thought, are you genuinely 'comfortable' having people inadvertently glance at you and then feel a bit embarrassed?
Of course, in an ideal world people would wear whatever they want. But in the real world, you think about how much of yourself you want to expose. It isn't only flesh that is the issue in terms of decency, it's how much of your form you are going to reveal. People wear bikinis on the beach, but they pay attention to what style of costume it is, and whether it stays opaque when wet, etc.