This is a really cool idea and a very smart way to get a good feel for what to except before trying it out on your head. Really interesting to see.
I am definitely curious as well to see these in the sun. I think the fire genasi looks really lovely especially if you aren't looking for burgundy. What did you use to lighten the samples? The sample at 7 (fire genasi on lightened hair) is a stunning color but may not be worth doing depending on what you had to use to lighten it.
Bookmarks