The signature of Hong Kong female artist <a href="https://en.wikipedia.org/wiki/Agnes_Chan" class="extiw" title="en:Agnes Chan">Agnes Chan</a>
<a href="//commons.wikimedia.org/wiki/User:Will629" title="User:Will629">Will629</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>