They both have tassels as a motif, but on the one they are hanging from sheaves or bundles and on the other they are hanging from what appear to be prawns. (although I doubt they are really prawns, probably some kind of leaf)

The other similar motif appears to be lily of the valley on the one dress and branches of olives on the other dress, so I don't think it's the same motif, just superficially similar.

But I am now curious as to the iconography of tassels. Do they mean something specific in this context? Or do they appear on some royal coat of arms?