Wow, if I thought they'd really come out that cool, I'd get some all white tattoos myself. I think, perhaps, someone has adjusted the colors on this photo. The white pigment is under the skin, not sitting on top of it, so any naturally occurring pigment will tint the tattoo. And I think part of why it fades is that it's a pigment, not an ink, which is why colors need black outlines. But if that's what she really wants then that's what she wants, just find a tattooer who will be cool and make her first experience a good one.