Yes the light and the ice sheet play so much factor on the skaters appearance on the ice. I have one set of my daughter's photo to proof that. We were late and had no time for the make up. Since she was only 9 at the time, I though her youth would pull that off to some extent. But nope...I was so wrong. From that set of pictures, she could have been the extra from the Walking Dead.Let's also not forget: they're on a sheet of ice. Combined with the lighting of the camera that is a LOT of white space showing up on camera. They would something to make their faces stand out. Expression would be more obvious to the judges and would add to the presentation aspect. If I were a judge and let's say for example Yuzu was on the other end of the ice, I would not be able to see him emote as clearly, but if I see the face with just the right make-up, it would stand out in the instant I saw it when he intended to in that moment, and would be more inclined to give a better mark.