1) The policeman in panel one is about to apprehend the little juvenile delinquent for drawing a mustache on the war hero's statue and painting it custard yellow. It's going to take a lot of allowances to pay for the sandblasting. The policeman in panel two is a member of an ultra-authoritarian, dystopian police-state in which merely sitting on a statue of the Great Leader is punishable by up to 15 years in a squalid solitary cell.
2) In panel two, the bird will be arrested for defacing the Propaganda Ministry's sign in honor of the Great Leader:
THE WAR IS OVER
THE INFIDELS ARE DEAD
THE REVOLUTION WAS NOT TELEVISED BUT ALL YOUR MOVEMENTS ARE VIDEOTAPED
ALL HAIL THE GREAT LEADER
BIRD POOP IS STRICTLY PROHIBITED
3) The factory in the background of panel one makes printer cartridges. The factory in panel two makes tinned meat, which will be rationed out two cans per family per week. The woman's family has received nothing but sardines in mustard sauce five weeks running.
4) The woman in panel one is wearing the biggest damn pearls I've ever seen. The woman in panel two is wearing a necklace of ping-pong balls, the symbol of the proletariat. The Great Leader led the proletariat in slaughtering the rich, the intellectuals and the atheists, those effete croquet and badminton players. But behind the walls of his gated estate, the Great Leader plays bocce ball.
5) The sun in panel one is an unusual orange color because the sun is entering its red giant state. The sun in panel two is orange because the Great Leader commands it.
6) There is no sixth difference. The Great Leader demands all lists be made of five items.