The old polish in this nail art is Agnès b. Swimming blue, that I used in a gradient with Kiko 295 Cerulean Blue and Kiko 340 Light Blue. I added a coat of Elevation Polish Avalanche! on top.
As you can see on the bottle, Swimming Blue is a polish for feet... Hmmm why? Absolutely no idea, lol! Maybe because when I bought it, wearing a blue like this one on your finger nails wasn't usual...? Oh, us French and our boring French manicures and boring red and pink polishes! :P Or maybe, you have to use special nail polishes on your feet, and no one told me about it??? o_O
Hope you liked this mani =)