How can i delete images in closed thread?

[Doge Sensei]

https://www.epicnpc.com/threads/kronos-28x-nightlord-9k-legion-9-pitched-352m-cp.2980672/
I want to delete the image as well as the content of this thread, my customer complained about being caught by others

 

[EpicNPC]

The images have been hidden. Only you and the buyer can now view them.