A reference for Aelthiel (or Gene)
In most universes he is just Gene but in the primary Universe of Demons and Angels he's primarily known as Aelthiel or Aelth for short
He's a messenger angel for Heaven and is very good at his job. There's nothing faster than a messenger angel and he can fly around the planet in a matter of minutes.
His wings are a metallic gold
He is Christmas themed but more by accident XD The holiday and the exitance of the holiday worker elves actually came to be in his universe because of him. Some people misheard his name Aelth for elf and as he often sent messages and gifts between heaven and people alike, he accidentally became a figure of giving and holiday cheer. Originally his bells were meant to be a welcoming announcing sound but now they are associated with the holiday too