In a downtown Los Angeles studio, stylist and designer Marquise Miller is centered on the task at hand: styling. Not his normal Rolodex of clients, which consists of Oscar nominee and director Shaka King, Syd from the Web, Big Sean, Strike-Boy and Jaden Smith. Today, Miller is styling himself. His head is racing as he paces the place, figuring out what he will have on very first. He lays and hangs pieces from his personalized wardrobe more than an industrial outfits rack: worn Dickies, earth-tone and tie-dye sweaters, Gucci loafers, quilted trousers. You can see his mind building connections, sifting this texture and that color, this materials and that dimensions,…