I figured the Kirika and Mireille with guns would 
be a toughy.  Their eyes do move in those two 
pans, so if the animators thought of the poor cel 
collectors in production and felt up to the extra 
work, maybe there are multiple complete cels in 
the sequence.  *laugh*  Unfortunately, I bet it's 
probably just a separate eye layer.

It's actually among the least desirable to me of 
all the screenshots I posted, but like you said it 
is one of "the ones" that everybody wants.  I 
could not resist that draw, especially since I was 
screencapping the eppy anyhow.  :P