Xia Siyu's appearance was seventy percent like her mother and thirty percent like her father.
Wen Qunxiao's features had a slightly Eurocentric quality, with deep-set facial contours. Xia Youbiao, on the other hand, had a refined and gentle demeanor, with softer facial lines. Xia Siyu resembled her mother more, but the sharp and striking features from her mother were softened in her.
When she debuted at a young age, she still had an innocent, childlike charm, and often played roles as pure and sweet young girls. With her oval-shaped face and dimples complementing her sweet smile, back then, she didn't particularly resemble Wen Qunxiao.