Fantasy art styles borrow a lot from previous fantasy worlds like Tolkien, but if you look at the Dark Elves, Orcs, Dwarfs, Beast-folk and Knights in this game they are straight up stolen from Warhammer. The Dark Elves even ride raptors.
If Games Workshop should be suing anyone it should be Focus Home Interactive.
Hate lazy artists! Its fantasy! You can think up your own stuff!