Give this to your friend.
Various works of yours, specifically
[link] are stolen from various artists. If they are not taken down by Deviantart or yourself within the next five days, I will be filing a complaint with the website via the Digital Millennium Copyright Act (DMCA) and you will receive a letter to remove your illicit content or be faced with legal copyright infringement charges. After the five days have passed, I will also contact other users you have stolen from to give them the option to also seek legal action for your copyright infringement.