I know that it's just the back of Celestin's 
head, but it would help out with completing these 
scene, wouldn't it?

My friend has one of those Belldandy cels from 
this sequence as well.  And he was thinking about 
getting a blank sheet of acetate, paint a small 
white oval to represent Celestin's head, and 
super-impose it on the Belldandy cel.  Funny, 
isn't it?