Zac Pozen - Paris Fall / Winter 2011-2012 The one consensus on leaving Zac Posen 's show had journalists agreeing there had been some changes chez Posen. Perhaps there was less pressure to live up to for this, his second showing on the Paris Fashion Week calendar, but the presentation was a more confident and unified assemblage, without relying on awkward details like the disastrous feathers from last season. This season's unifiers were the slim, above-the-ankle, cigarette pant, his structured jackets and blazers, and the array of blues, the color that should be crowned the new "black" by the end of Paris Fashion Week. Posen's eveningwear was as red-carpet friendly as ever, but it just showed a little too clearly what was missing from the rest of his collection: some va va voom ! For hi-rez Photos and exclusive Blue-...