Did you use a mat pose on your person? If so the "texture changes apply to all parts" button sometimes screws up the mat pose. Try unticking and apply the mat pose again. The hair, looks like you may have a reflextio applied, and its picking up the transparent parts. No idea on the dress.

The greatest part of wisdom is learning to develop  the ineffable genius of extracting the "neither here nor there" out of any situation...."