Shadow root/colour melt

[Hairfairy1904]

Hi geeks,
I have a client who normally has full head highlights with Prelightener. She hasn't had it done for about 4 months and has a decent amount of regrowth. She's wanting her hair similar to the pictures below.
I can only use wella colour on her as that's what she's been skin tested with. She's booked for Tuesday so I can skin test before then with another colour range if needed.
What technique would you use? And how?

Any advice would be fab, many thanks!

 

[Zoe Silver]

What level is her virgin root? If her hair is not too dark, just do a balayage with Blondor (since you use wella) and then tone to match the rest of the color. If the roots are too dark, then you need to lift them 1-2 shades and then do the free painting with bleach to achieve the melting effect. I would consider foils too. Sorry, I haven't used Wella that much to give you an opinion on the colors and range cause I mainly use Loreal. I've used Blondor though and it lifts quite good. xx