How does Nora Roberts use imagery in Witness in Death?

Imagery:

"And a hell of a face it was, she thought. It seemed to have been carved by magic into the staggering male beauty that made a woman's glands hum a happy tune. The dark mane of hair framed it, those long, sculpted bones; the firm, full mouth that was curved now in the faintest of smiles as he watched her. He reached out, ever so casually, to skim those long fingers over the ends of her hair. And those eyes, that brilliant, almost burning blue, could still make her heart stumble. It was mortifying the way the man could turn her inside out with no more than a look."

Chapter One, pg, 3