If you thought the game was intimidating, and it is, you need to see this Garl Vinland Cosplay work of art that is this piece of armour. I advise taking inspiration for some of your more awe inspiring villains/characters to be taken from the whole Demon Souls/Dark souls saga. They tend to have a certain “presence” about them.
Daniel who goes by Corroder666 and can be found online at Deviant Art here, has quite a wardrobe of excellent game-inspired cosplay outfits that are sure to convince you these sort of things may really exist. I highly recommend taking a look at his work which not only includes cosplay costumes but a surprising set of crafted “props” which really do look good.