Piet Mondrian has officially infiltrated Fall 2011. Tommaso Aquilano and Roberto Rimondi took the very essence of modern art, which Yves Saint Laurent first brought into the fashion world via his historic 1965 Mondrian dress and created pieces that were more Jazz Age flapper than BBC Mod. But the duress of the work that Aquilano and Rimondi put into their clothes is more old-school than any readily available 20th century reference. The final garment was a dropped waist gold and blush Mondrian dress, intricately embellished in crystals, the dropped-waist pleated with just the right taste of Gladiator. The effect was more classic than modern - more like Versailles gold-leaf or the expertly gemmed rim of a chalice, than a sleekly-framed piece hanging in the MoMA. Luisa Bianchin donned that glittering, marvelous final number, as well as the more subdued, but equally wondrous yellow opening-coat, which has to qualify as one of our very favorites in a coat-frenzied season. Consider Ms. Bianchin one very lucky lady.