Just standing there, flat to the camera and with her left arm hanging straight down makes for a very uninteresting center.
IMO, color is way, way off.
This is a place where a color balance card or device is critical.
I have a feeling the photographer intended it to look this way. The girl has that Gothic look, dress and makeup wise. Unfortunately, even a 1/4 power from the on-board flash could have added to the interest/dark theme.