This [url=https://creativecommons.org/2012/12/07/cc10-featured-platform-deviantart]link[/url] maybe be useful to the conversation at large. 

Ultimately, if an artist requests you take something down or link to the source, the courteous and respectful thing to do is [i]comply[/i]. One should not be entitled to disrespect or escalate a situation when they are using works that are not their own. It is not hard to not be a dick.