I think that they both are pretty..My opinion, I think Yam doesn't look good in boran clothes because of her fascial features. Like when she wears the crown (or what u call it, the thing on the head) it doesn't fit her. Her face is too round, like Sharona said she looks like a child. She looks like a femine dude. And is it just me or is it when I first saw Yam, I thought she was related to the guy that played in KaewNahMah. They sure look alike. Anyways back to the topic, Yam fits more in a modern clothes. But Au in the other hand, fits with the boran clothes and crown jewels, because she has a sorta like a long face.