I've begun to think the Demon and the QiLin are the same character, just his evil and less evil side.

spunky illustrated the two together; something about this image really bring out the two, as two halves of a whole.

I worked with her rather more than normal on the expression of the QiLin; in the end, he's got the perfect expression, "yeah, I know he's back there. What's your point?" I think the extra work paid off in terms of getting the right personality.