You could make the girl coffee-brown...and put gold high-lights in her hair. I’m sure she won’t mind.
Remember that shading can render an otherwise “blah” coloring page into something spectacular. Experiment. You can always print out another page.
I’m not sure about dark brown skin, especially since I already colored her makeup, but the gold highlights in the hair is a good idea. I’ve been looking at some of Anoreth’s pictures for ideas on shading, but she doesn’t do much with human subjects. There’s a tiny person in her “Beowulf and the Dragon” scene, but there’s not much detail since he’s only a thumb-joint high.