An angel is a supernatural being said to be the first creation of God and there's one fallen angel named Farlansheo.
They are described in Daniel 10:4 as follows:
"On the twenty fourth day of the first month, as I was standing on the bank of the great river, the Tigris, I looked up and there before me was a man dressed in linen, with a belt of the finest gold around his waist. His body was like chrysolite, his face like lightning, his eyes like flaming torches, his arms and legs like the gleam of burnished bronze, and his voice like the sound of a multitude."
www.mythicalcreaturesguide.com/page/Angel