Essence crackle polishes are not the best, I've tried, but I have to say that the blue one has much better formula than the black one and it crackle better. Dark blue shimmery polishes are my big love and when I saw Essence is going to release crackle polish in this color, I said: Yes, please! The formula it's a bit sheer and you have to apply thinner coat, so that crackles nice. But it looks gorgeous. As a base color I used Deborah Milato Pret A Porter Celestial Sky. What do you think? Do you have Crack Me! Blue?