Take a zig zag diagonal back line on both sides of the top. Work with a weave and apply the foils from side to side so they match up. Keep working back until you get to the back crown. Lightener + 20 volume was used.
Chevron are great to do on straight hair, you will not see line or railroad tracks when using them, you can make them bold by doing back to back foils also.
When you do block coloring you are making a strong statement. To get straight line, use the 3M companies Pink Tape at Sally’s Beauty, it will keep the tones separated. Always rinse the dark color out first, then the blonde.
Pinwheels can be in foils with 1 color or many colors to creates a beautiful technique!