It's called being objective. I personally don't find Adriana Lima attractive but she's a top model and obviously has extremely great features so it wouldn't take a genius to realize why.
Attractiveness is to some degree subjective. A good example of this is shown through social influence.
There was, for example, a study done in which they had participants rate a bunch of faces. From there, they had shown some participants how others rated the same faces, with one group bring shown faces that were all rated higher, another faces that were all rated lower, one where faces were all rated around the same, and one group were not exposed to other people's ratings. Then they had them all rate the same faces again. By looking at both self-reports and their nucleus accumbens activity, they found that their views on how attractive the faces were had been impacted by other people's ratings.
While there are
some objective factors when it comes to attractiveness, a lot of it comes down to other things, such as time-period, culture, individual life experiences, wealth, etc. Adriana Lima isn't necessarily going to be considered that attractive by many because her precieved "attractiveness" is based on many social factors (plus, tbh, I don't even find her attractive or good-looking).