Warhammer IP is a fucking nightmare. They will bring all kinds of hammers down on anyone trying to make money on anything Warhammer-compatible or resembling Warhammer.
Examples of what they pull when someone tries to do that:
https://www.plagiarismtoday.com/2024/01/24/printed-minis-and...
https://freelancerpress.com/arts/2025/06/04/games-workshop-i...
Games Workshop store employees will also kick you out for using 3d printed models in your army, even when it's just for casual play.