[@Madison Parker] I feel they might be leaning towards outlandish. Some of the types I've come up with are [i]definitely[/i] more towards the outlandish side, but there are also more mundane forms of undead.

Since the origin for the undead will be magic, I wouldn't expect [i]too[/i] much realism (though I do enjoy it). At the same time, I wouldn't expect anything like those sludge monster things from Resident Evil 7. 

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Sorry if this isn't a very clear answer, I don't really know how to explain what I'm aiming for.