Peter Debruge Chief Film CriticIn first-time-director Kelly Oxford’s snappy, super-saturated account of her personal battle with anxiety disorder, “Pink Skies Ahead,” the main character is named Winona, but it’s her best friend Stephanie who does all the shoplifting. It’s like a compulsion: Every time they go to the convenience store, Winona distracts the awkward, androgynous-looking clerk behind the counter while Stephanie roams the candy aisle, filling her pockets.