this is my OC Khight in his "demonic" form...

he is a dark knight, but the reason for the wings is that he's a Dracii Coritura (literally means "demon half-breed"), which means he has the appearance of a "holy" angel (typically have light-colored hair and white wings), but has black wings (like a "fallen" angel)....

this gives him POWER! but if he turns completely evil, he'll become what's typically known as a "Vampire" (Dracii Corituras usually have fangs and if driven mad with power, they'll start to feast on the flesh of angels and other beings)

hopefully, Khight won't get that evil~!