So, i made a Set based on japanese culture, japanese demons, to be precise. This Set (made in Piskel) represents an Oni.
Headgear: So for the Headgear (It's name is "Asura's Andacht") there is a traditional Oni Mask, with a red dot on the forehead, two white horns and long with sharp horn-looking teeth. the eyes are red, as an Oni is an traditionally an evil beeing.
Chestgear: The Chestplate (named: "Beyond's Core") is a white chestplate with black arm-armor and purple shoulderplates. In the middle of the chestplate is a hole, which allows one to see the "Core" of this demon, a fiery, read-like looking soul right in the middle of it's body. ( That's the read thing on the chestplate). There are two lead chains that go from ones shoulders two the "Soul".
Legs/Feet: The Leggings (named: "Asura's Aufbruch") we have grey shoes made out of steel, with a red spike at the back of it, used for several japanese fighting techniques. Involving hard kicks and precise cutting with it while they also function as the spikes, that are typically used to cheer on one's horse when riding.
I've also made a paint version showing the chest and feet two make absolutely clear, what the armor represents, if something is not clear from the sprites.
Again, the red thing in the middle of the chestplate is the "soul". Generally the Set's name is "Beyond Death Set". I imagine this set beeing dropped from The Wall of Flesh's treasure bag or one of the new Bosses treasure Bags. Another Idea is to only let the Set only drop if a certain boss is defeated in the Underworld, allthough that would make it much harder to obtain (except it's the Wall of Flesh). The Design can of course be edited if it's put in the game and the way it is obtained can of course also be decided on then and without me.
Good Luck to everyone, and greetings to the devs for hosting such an amazing competition.