Srsly, the model when Noel activate Awaken:Darkness is outdated, ugly and feel like a lazy work from Gravity (Paint it all black or white).
Also it's not fit the lore. In the lore of Noel, before Ragnarok happened they also tall like human. They were Elf, after Ragnarok they become tainted with demonic power and become Noel (No-elf) then they grow demon wings and horns but didn't become shorter. They became midget after they use the power of Ymir's heart in order to keep they from losing their mind to the demonic power.
And the in game skill's are both about awaken the demonic power inside them. The black and white models just doesn't fit. They should be the same size as human race and grow wings with darkness aura just like how Assassin's aura work.
=>>> Keep same hairstyle, keep the face just make it bigger to fit the body of a human. Add wings and aura.