The key is to see if it is for profit. If it is not for profit, the use of star portraits will not constitute an infringement of portrait rights.
Legal basis: Article 10 19 of the Civil Code of People's Republic of China (PRC). No organization or individual may use information technology to deface, deface or forge others' portrait rights.
No portrait shall be made, used or made public without the consent of the owner of the portrait, except as otherwise provided by law.
Without the consent of the portrait owner, the portrait owner shall not use or disclose the portrait of the portrait owner by publishing, copying, distributing, renting or exhibiting.