I´m so happy about this challenge since I can draw some wings now, too.
Well, here´s my fallen angel for you. He´s an OC I created on the spot who hasn´t been named yet (though I instantly fell in love with him). As to his background, he was the angel with the purest heart and whitest wings (which are hinted on his left arm) you could find and he was loved by everyone. One day he got a little violent to protect some little kiddy-angels but the one in charge (god)couldn´t overlook it and punished him - thus he became a fallen angel. Feeling betrayed and disappointed since he can´t understand why (god) would let little kids be harmed without consequences he decided he will drag (god) down. Contrary to what everyone thinks of a fallen angel he doesn´t fight meaningless fights or behaves in an unjustice way and protects the weak who decide to ollow him and join him in being fallen angels (which others interprete as him Recruiting new fallen angels).
Concerning the wings I used this owl as reference, though the coloring was done how I felt (without ref, to be precise).
Hope you like him^^
Please enjoy^^ Comments would be welcomed~