Hi
I wanted to inform you that this background has been used by a scam NFT service to promote their... well NFTs
They've taken art from other artists without permission (or credit) including stuff made exclusively for commercial project
I understand that this particular piece falls under CC0
But I believe it's still valid me to inform what garbage your nice art is unfortunately used in
If you'd like to message that scam NFT and ask them to take down the stuff including your art, their twitter @ is @BattlesHero