Abigail Lorick, well known as the designer behind Gossip Girl's Eleanor Waldorf, has been on the scene for a few years. A young designer, she's had several successful showings over the past couple years, and her stuff has sold quite well on Gilt Groupe (I'm never able to buy a piece!).
Her Spring/Summer 2011 collection, Linear Dawn, featured a very pretty, muted color palette with sheer fabric accents, cool hats, and socks with heels! Here are some of my favorite looks:
Credit: Style It
And here's a current look that just might make its way into my closet (Serena and Blair actually wore this dress on Gossip Girl during an episode where they act as models for Eleanor's line):
Barlass Dress, available at Revolve: $237