Hmmm. I’ll go with the less obvious and underlying ones.
-The Italy Brothers’ eyes
-Germany’s inability to smile.
-Germany’s love for Italy’s climate and culture + his deep interest in Roman history (*cough Holy Rome)
-Japan’s clairvoyance abilities + his limited memory
-Russia’s curse
-America’s dual personality
-China and Japan’s old age
-England’s alienation
-France’s loneliness and overcompensation as a Big Brother figure