Posting them all together... here are my ref sheets for Omega, Aether, and Phantom!! Some of these details might change still (I'm not sure how I feel about the heights) (also ignore that I forgot to add Phantom's height in metric).
More headcanon stuff under the cut
Quintessence Ghouls in General:
So first of all, as always, I headcanon quintessence Ghouls as fallen angels. Their horns are actually broken halos made of glass. They have two sets of eyes, but as ghouls the second set is permanently closed.
They grow small patches of fur and feathers; the feathers are prone to falling out. They're all intersex (gonadal dysgensis)
Omega:
Omega was the first quint ghoul summoned by the LA ministry location, and was summoned just before the Ghost project restarted with Papa Emeritus I. He's not exactly a social butterfly, but he does love being around people and making others smile; he does prefer to "hide" behind his hoods & masks though. He has always helped with writing the albums, as it turns out he has a good ear for music. He still helped write for Ghost even after he "retired". Playing Guitar is actually one of his favorite things (most band ghouls have other passions, but not Omega).
He's the one quint ghoul that's most attached to his previous identity as an angel.
Aether:
Aether is the only quint ghoul to with testosterone injects & bottom surgery (i don't know or care to know the logistics of how a ghoul gets access to all that). After being summoned, he found that he had a real passion for cooking and jumps at any chance he gets to make food for people or try new recipes. I hate to say it, but he really is just "the dad friend." He's chill and laid back, but he cares a whole hell of a lot about the people around him... but not enough to stop saying "Hi hungry, I'm Aether."
Honestly, he was probably the quint ghoul most excited to abandon his old identity and embrace everything the world had to give him. He'll try anything once!
Phantom:
Phantom is the youngest quint ghoul, and not just because he was the most recently summoned. He actually didn't spend any time in Heaven at all; before he was "finished" he was deemed to imperfect, and cast off to hell. He was summoned to the ministry not long after that, so he's a bit naive. He learns very fast though! He took after Aether a lot, and is just as eager to try everything, but he's got a lot less self preservation in him.
Due to everything that happened to Phantom before he was summoned, he actually ended up with very poor eyesight. His eyes have adapted well by now, but for the longest time Aurora was the person he relied on to help him navigate while they were on tour.
