The cream long front view has a very broad lower outline. Larger reflective curved motifs extend from the shaped bodice into the wide skirt. A broader plainer low edge sits at the outer shoulders and dips towards the front centre. The arms hang beside the outer areas. The large skirt reaches far down and conceals the shoes. Inner layers or a particular support cannot be identified from that surface.
Compare the size of the motifs and their continuation across the skirt in particular. This is a different distribution from the larger plainer areas of the very pale pink reference. Pale reflections confirm neither metal, real stones nor a particular fibre. The broad shape does not make the photograph evidence of a historical or royal occasion either.
Request a normal stance with relaxed arms and the entire back of the real candidate. Check its lower finish with your shoes. If the large ornamented surface is your main interest, record it separately from the low shoulder edge. You can compare each preference individually with further dresses actually being offered.