+1
(+21)
I was shocked to not see this in the current to-do list, especially with how valuable this would be!
Today I (intentionally) deleted an image from a character's gallery, but to my shock there was NO confirmation prompt asking "are you sure?" And I would be devastated if this happened on art I wanted to keep!
The way to delete the image is a little trash can icon right beside a link to that character's profile, or a HUGE link right under "set as avatar". It would be way too easy to accidentally hit either button while trying to click on the character's name, the artist's name, trying to set an avatar, or not even trying to click anything at all. I accidentally click on links just by fidgeting or when I had a dog that would bite my elbow to signal I needed to take her out. Misclicks happen, and having it right by a link that would return you to the character's gallery is anxiety-inducing.
Back up your images until this is implemented. Especially if the only copy of that art exists on toyhou.se.
Related thread: Other Users Can Delete Your Images!
The fact this can be done accidentally is absurd!