Rock, the good news is that you can decide very quickly if it looks good or not. Obviously, faces look very different in-game than on the creation screen. Early on, when Anderson starts talking to you on Earth, you stop to answer a question. I think it might be the first "choice" of the game. It shows Shepard's face, fully lit in solid lighting. That's as far as you have to go.
When I made this black Renegade Shepard, I redid it once after seeing it there and deciding to try again.
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Women come and go, but Metal Gear is forever.
Perfect Odds A Cappella ~ http://i43.tinypic.com/34pdhc7.jpg