I see your point Shelly, but if you were to walk into any Madison Avenue Advertising firm, a woman interviewing for a position wouldn't be wearing Banker or Wall Street black and white.
Not only are interviewers looking at her portfolio, but they are looking at the candidates personality as well to see if they are a good fit for their organization and culture. Someone could have the best portfolio around, but if they don't fit in, they won't be hired. Her wardrobe will be a partial reflection of her personality. Dressing like a Banker will make her staid and boring looking. She's interviewing for a creative position. She desperately wants to live at the beach and make a go of it, and thus she needs to dress the part somewhat.
I am not saying she should walk in with a red suit on. I was speaking more along the lines of taupe, pale grey, and perhaps one of those lovely pearl necklaces they sell at the beach. Classy, but with some charachter.