Demons with strange hair

The guy on the left is from Tsubasa Chronicle Episode thirty-something, and he’s pretty cool despite me not having an actual reference when drawing. Here is a reference I would like to have used for the hair.

The girl is another OC (original character?) to be his girlfriend. She is a demon priestess (they’re both demons) and together they stand united against evilness. Or something. Their legs are too short. The sword is a little nifty. His hair needs to be longer. Her hair is purply with a blue kimono, or the other way around. I’m not sure.