What constellation is the information of Pu Yuxi _ Pu Yutong?

Is the heroine in Jay Chou's Say Good Happiness the same as the heroine in Jane Zhang's We Say Good?

The mv heroine of Jane Zhang's Our Agreement is Pu Yuxi, and also the mv heroine of You Hongming's Jude is a Love Song. The heroine of Jay Chou's Say Good Happiness is the female No.2 Chen Kuangyi in I May Not Love You. They all look a bit like Vivian Chow, so you would think they are the same person.