Here's one side, which to me looks a little more like sunset hair than rainbow hair (because I didn't put any green over here, haha). I actually used Neon Blue mixed with Ion's new blue Sapphire to get the blue here. Oh, and I've been wanting to use Dark Tulip for a very long time, and boy does it not disappoint! Gorgeous color.
I feel I can declare the locked-in experiment a success! It's really weird using it though as the texture, consistency and overall goopiness is so different from all the other dyes I've used. The SFX colours are in a gradient going from bottom to top. The rest I sectioned in slices. With the locked in it's pretty obvious really! Love how I can use high contrast colours next to each other.