Formula by @cortneymannhair

Base: ¾  8U-12 and ¼  8U-36 with 30 vol. Calura Permanent Developer 

Highlights: Blacklight cream Lightner with 10 vol. Blacklight Smart Developer  
•For her highlights I did 4 foils diagonally around her face for brightness  
•For her base I wanted to keep her cool and minimal banding from previous color. 
Added the 8U-36 to allow for reflection and to look more natural.