ramateshkolian – I do agree with you.
The essence of tznius is penimius over chitzonius. That a person’s soul is the thing that runs his life, not things that merely cover the cover to the soul i.e. the body
ostentatiousness, and labels, which put ostentatiousness front and center, are about chitzonius. Decorating the body to such an extent, that it’s not about covering the body anymore, but about drawing attraction to it. Making people forget that the body is merely a container for the soul and not an entity with any value by itself.
When a person dresses ostentatiously, he or she is putting the body first and the soul second and emphasizing the chitzoni over the pnimi and undermining tznius, which is about protecting/hiding inner beauty by covering outer beauty.