Goth hair

I decided it would a good idea to also look at the "gothic" subculture for inspiration too, starting with hairstyles. 

Black hair is often the base of gothic hairstyles, but adding a flash of white blonde will create a stunning contrast and give more dimension to the hair.

 
As seen here in this photo of Amy Lee braiding and braiding in different colours are also a key trend in gothic hair. This would be easy to achieve by simple braiding or by adding in some crepe hair in a multitude of different colours.

Destroyx/Amelia Arsenic's hair style here is a perfect example of a more extreme style. Dreadlocks and hair falls have been added in a black and red colour scheme. Again this style would be easy to recreate by purchasing some hair falls. 

References
http://www.womenhairdesign.com/gothic-hairstyles/ 
http://jeraultrends.blogspot.co.uk 
kootation.com/gothic-hairstyles.html