On more complex models like this one, I like break the model apart into different sections for the unfolding step in Pepakura, so that when I do a test build and it turns out I need to re-model the hair because it turns out what I had in mind doesn't work, I don't have to unfold and edit all the flaps and fold lines on the torso, arms and legs again too...
And oh yeah; she's green because I find it easier to see what I'm doing that way. Not to worry though, that's just a matter of reloading the textures. ;o)
Stay tuned for more!