While powerful imagery, I'd prefer if they did their own stuff. The game is already trying to sell an idea that hell is all kinds of different from what we usually imagine it to be. There are great many similarities for sure, but it's still very much it's own thing. So it only makes sense to use more unique and more creative iconography, rather than the same ones we always see when anything with "hell" is involved.
And things like Crucifixes make even less sense to have in the game. There is no mention of Jesus or Christianity, anywhere. Cross is simple enough, that it's believable to exist without Christianity, but a Crucifix is not a good idea without the religion, me thinks.