Sentence:  When my father returned from Milan, he found playing with me in the hall of our villa a child fairer than pictured <WSD>cherub</WSD> – a creature who seemed to shed radiance from her looks and whose form and motions were lighter than the chamois of the hills. 
Meaning of the word marked with <WSD> tags:  An artistic depiction of such a being, typically in the form of a winged child or a child's head with wings but no body.