This is Fiona! This beautiful spirit liked the color of her hair but wanted to make it a little warmer and correct the line of demarcation. I decided to do a reverse balayage. I took a darker color (that matched her roots) and did a balayage, but only feathering the color from the roots to the line of demarcation. I made it a little "irregular" in my application so it would look more natural and like the color was melting into her hair.
On the roots to correct the line, I used Redken Shades EQ 6N,7N equal part with a little 8WG. On her ends I used Dialights 10.32 to bring some warmth but still having a more natural tone.