Here's a great example of how to wear a sparkly hair clip, modelled by Rose Byrne. At first, I wasn't sure if it was overkill (her dress, if you didn't see it, has a similar diamond embellishment at the waist). But I'm going to give it a pass, mostly because it's just so divinely girly—my inner four-year-old is loving this hair.
(Also notice that her highlights start several inches down the hair shaft—a modified take on the whole ombré trend we're seeing on celebs like Alexa Chung lately.)
My one wish: a tad less blush. Otherwise, good job on the subtle cat eyes and great colour on the lips.