I saw this beautiful photo of Zoya's Maisie layered over Kristen and had to try to recreate it immediately. Essie's Cocktail Bling is a muted gray/blue, and while it might not be as light as Kristen it certainly worked out well.
I've learned the thing about flakies is that they never ever look nearly as good in photos as they do in real life. Pictures make them look more odd and speckled whereas in person, flake polishes give off an awesome iridescent glow. They can look speckled in the shade with absolutely no light hitting them, but the tiniest bit of light makes them sparkle and shine and gives whatever color you layer it over a real boost.
I'm definitely a fan of layering flakies over base colors with similar tones. I really enjoyed the contrast of Maisie's blue/green flecks over the muted gray of cocktail bling. It was really hard capturing just how great this was, so you just have to trust me that this looked even better in person:
And here is Cocktail Bling alone. An awesome muted gray/blue that is just as lovely without a sparkly top coat.