Tonic is beautiful especially for brown eyes and pale skin. It makes me feel like a space queen. It looks like a bright purple in the package but turns into a lilac/violet on your skin. It shines slightly blue and reddish in some lights and is an all around incredible color.
It is finely milled and not at all chunky or super glittery. Unlike some shades this is not a glitter bomb. And, again, unlike other shades this color will change on your eyes depending on light. This is not one of those colors that only switches around in the palette or on your hand.
I actually use this color on my face, sparingly, as a highlighter. I brush it on softly and then blend blend blend. The effect is beautiful and the radiance of this eyeshadow really comes across.
5/5 for me!