I love the elaborate costumes that Solitaire wears when she's doing the tarot cards, especially the big spangled red headset and dress. Julie Harris was the costume designer, a heavyweight in the film costume industry. I really like how Seymour's make up and the art direction surrounding her is all choreographed, like something from a Fellini film.
I loved Emma Porteous' costumes for OP, AVTAK and TLD (another big name designer of films such as Supergirl and Aliens). There's some really striking, intelligent design in there. I cite the example of Kara, Saunders and Bond at the opera, where Kara walks away to leave the two men talking. You can see Kara walk into the background, the only person in a striking blue colour, made more significant by the sequins that dazzles the lens bokah as she's out of focus. It really punctuates the conversation dramatically.
QOS too I thought was fantastic, just gorgeous, for keeping nearly everyone in stark black and white. I love the strking contrast which works beauitfully against those lavish sets, and also turn the film into near black and white such as in the oil girl scene at the hotel.

