Instead of explaining myself with words, I’m going to let the following screenshots do the talking.
Examine, ladies and gentlemen, Exhibit A taken from episode 2 of the show:
Doesn’t that look nice? Now take a look at Exhibit B taken from episode 4:
Wha… what is this? What happened?
Production I.G., you disappoint and sadden me. I’ll continue to follow d’Eon, but my respect for I.G. has just gone down the drain. It’s true that few company can maintain the same consistent quality throughout an entire series – why else is Kyoto Animation so highly esteemed? – but to drop the ball so hard in episode 4 is simply unacceptable
On the other hand, occasionally there’s some pretty cool facial distortions (not to be confused by ‘emo facial contortions’, as popularised by Jason Miao of AoMM fame), as demonstrated by Shinobuden:
Episode 1 (and most of the show):
Episode 9 second half:
Isn’t the second Shinobu-chan so much cuter?