From a male point of view I admire the physiques of both Darcey Bussell & Dawn French.
I am also aware that the era of Marilyn Monroe was also the era of Audrey Hepburn.Darcey & Audrey were not skin & bone, both have/had excellent muscle tone,I think this crucial fact is disregarded by advocates of size zero.Thin does not equal beauty.Beauty comes in all shapes & sizes.Those designers who imply otherwise stand to profit from doing so.