Can i borrow this image?
If you are asking someone on an old thread, chances are that they are not active. You always need consent with people's fan fic. Though, it's contradictory for the wiki community since most editors upload fan art from various sources. Personally, I never upload fan art. After experiences with the Magi Wikia community, where someone asked me and Admin to stop uploading fan subbed author sketches. I never did agree, but we removed them in the end.