Wow, tons of really thoughtful examples here. It's difficult to showcase single images that sum up a character/series, the images may exist but we might not necessarily have them in our collections!
This thread proves what dedicated collectors you all are to have acquired such shots.
After consideration I'll add these to the list:
MONSTER CITY/DEMON CITY SHINJUKU Kyoya's survival, fighting monsters in a dark, horrific city- with only a stick as a weapon.
MEZZO FORTE: Harada and Mikura's relationship
MEZZO FORTE: Momomi, psycho bitch
AKIRA, an uncontrollable power