She wasn't intended to be white. If you look at my other drawings of water tribe characters (here and more on tumblr) you should be able to see that I typically draw them with fairly dark skin. The cintiq monitor I usually draw on is pretty dark, so while I'm drawing the images appear darker on my screen than it might on others. I usually try to look at my drawings on multiple monitors before posting, but I must have forgotten to on this one. It wasn't an intent to white wash, it really just comes down to art looking different on different screens and monitors.