I just re-watched the shoe part, and re-watched the beach swimsuit picture book episode as well and I have to say the skin tone looks similiar. Cornelia's pale, but not as pale as Euphie.

The lightning of the blacked out elevator could have an effect on it as well I'd guess.

But then again, that scene could've been completely innane and just there to show how much of a hurry some of these people are to get into the elevator.

@RZ: I thought they were just shooting at everyone Britannian or Eleven, due to the fact that during an intercom transmission one of his subordinates were like "But, Captain a ________ is down there" and he responded "Don't mind the local government, these are orders from The Majesty". And before the scene where Lelouch gets the Geass he noticed the insane pile of bodies were of both sides.