Erdem always reminds me of Coco Chanel (I think? Maybe someone else super stylish)... when you think you are finished getting dressed, take at least one thing off!
In Erdem's case, it could be the lace, the ruffle, the high neck, the unflattering length or the carpet and curtains loud pattern. 
They never seem to suit anyone - why do so many women pay so much for them? It's a puzzle!