Taking other people's works to earn money is against rA rules if this is work from someone who has paid services active in rAthena. We kinda afford when the authors are outside of rA (like renders, drawings, art in general) leaving that responsible up to the seller.
However, as we confirm this, I believe then the issue is more of our concern, since its taking work from other members who offers active paid services inside rAthena (YHMWHY and Shiju Graphics)
Nonetheless, perhaps, we have to wait if they claim something against this.
Many was using that background because it is very so good