All of the crackles were applied over dry polish, except Oxidized Aqua and you can see there's a difference in the way that it crackles (larger gaps). I actually prefer this look, so next time I'll apply them over wet polish. My only concern would be getting the base coat mixed in with the crackle, but that can be fixed by applying it over a clear top coat instead of directly over the base.
I like the idea of Metallic crackles and how they shimmer, especially when they're matt-i-fied. It seems like everyone is jumping on the crackle band wagon, even those that aren't too familiar with polish trends. My boss even asked me about crackle polish, lol. I think China Glaze did a great job putting a spin on a trend that's being over utilized. The Metallics provide an edgy look but can be softened by pairing them with your favorite pastel.
China Glaze Metallic Crackles can be found at Sally's Beauty Supply or your favorite E-tailer.
~Some of these products were provided for review~