[Will Enns]

Dianna,

I think Mike is right, and white balance is your culprit.

Photographing something in north light is really about color temperature, which has no bearing on grayscale images such as graphite on white paper.

Considering the simplicity of your camera, and the fact that graphite is a grayscale medium, I suggest you simply convert the existing image to grayscale in your photo editor, to look like this.

For what it's worth, I would expect the same kind of shenanigans from my full featured digital.