There's no need to claim that An Jing looks like Yao Qing, as that's not really necessary. In fact, An Jing's features aren't particularly delicate and simply cannot be compared to Yao Qing's.
She stands out because of her serene temperament, like clear, still water, and her eyes are as bright and pure as a child's, the kind of cleanliness that many world-weary people long for and favor.
Yu Yanshen glanced at her briefly before turning to continue walking.
He had gone only a few steps when he realized An Jing was still standing in the same spot behind him.
With an emotionless face, he spoke, "If you don't need me to escort you, I'll be on my way, okay?"
An Jing seemed both surprised and delighted, "I thought you were just pretending in front of my father."
While talking, she stepped forward to follow him.
Yu Yanshen withdrew his gaze.
"It's just a small matter to escort you," he said.
An Jing nodded her head.