I'm just going to assume it is fake or a real tan. It wouldn't surprise me actually. Her face (at least in those images) has heavy blushing applied as well, seeing as it is ridiculously difficult to see any
negative facial features, blemishes, freckles, blackheads... She probably was in front of a mirror more than the camera.
But you cannot really get a good idea unless you can understand the brightness around her. The amount of lighting on that shoulder tells me that there is a lot of lighting on her, so it could mask her color.
Examples using me (not a model or anything), depending on how much light my crappy iPod Touch 4G sees whenever I am outside, I can make myself white or orange.
I used italic on negative because I don't want to start an argument. I am going off society's accepted "beautiful" term these days.