You have prominent highlights on her skin, but her hair is quite flat in comparison. The texture of hair is usually as least as reflective as skin.
There are also value coherency problems, such as the spider’s value shift from the lit to unlit side being a much smaller shift compared to the figure. Even if the spider’s surface is matte, it’ll still have a greater shift than what you’ve given it. Value shifts have to have logic behind them, and you need to keep it consistent in the entire image.
The lighting is also a bit vague. What kind of light source is it exactly? A spotlight focused on her face and shoulder area only? A large frontal area light?