Just had a look at the high-res image and it looks like they gave her green eyes and freckles to match. Neat. If only MaleShep looked half as interesting. Maybe next they should try voting on a new default MaleShep so he doesn't look quite as much like just about every other video game protagonist from the last decade.
Except Male Shep has been on the box for the past two games, which might lead to a new one on the box invoking "Who the hell is this guy?
IIRC FemShep is only appearing on the back of the CE tin box and trailers with her in them.