Most people forget that Lucifer is beautiful and make him ugly and demonic. He's a shapeshifter so he CAN look that way, but he was specifically created to be the point of perfection- that includes beauty.
How do you know he is beautifull? Some people really make a fool of themselves here. He in fact, and I am not talking about appearance, is ugly. Because he resembles the ugly side of our moral values. It's the reason why we kill, steal and lie. Romantisizing something that is in fact ugly is called fantasy, or escapism. Just don't get blinded by it. Have you ever been hurt by someone with a pretty face? The moment you do experience something similair, you will not so easily state that the Devil is a 'pretty boy.'
"And his wings beautiful, strong and great. For as long as his pride is his will, his pride will keep him chained. The winds of his beautiful and great wings will forge a frigid wind and the ice will be his prison. Only when he abandons his pride and climbs out of the lake, may he return to the light"