I am totally different I think she is shining the most as the weak girl. Her bodylanguage and her voice projection are on point. She is not trying too hard to appear nice and modest but she is showing the sincerity and the humanism of her character. Put a green actress or a limited one as Nuan and she will come off totally stiff like a log. I think as Peung she is good. Her character as Peung screams too much tho even convincing as a scary and heartless person. But as Nuan she is killing it. Her scenes with Arnus show how both of them are good representing the humility of people in need (she shows a lot of warmth when with him)She has that strong look in her and her eyes aren't showing that soft side like how it should be? At times she comes off having that blah facial expression. I feel like she's holding back. The evil twin is doing a great job.
Or perhaps her soft side just comes out with that lazy expression/look?