>>23127390
Proper female toplessness where the breasts are intentionally uncovered and accentuated by the dress, such as in Minoan and some Egyptian outfits, is based.

In contrast, the quasi-toplessness you're posting is degenerate. The dress covers the breasts, indicating a continued cultural adherence to the idea that the breasts should be covered, but does so ineffectively in a manner intended to transgress moral norms rather than maximize the beauty of the woman wearing it.