See through Neon Watermarble
First I started off with a white base, using Zoya Purity.
Using a wedge makeup sponge and the gradient sponging technique I did the gradient. For those unfamiliar you paint each color onto the sponge in a strip and then stamp the sponge on each nail. Then repaint and repeat once more onto your nails. I'd recommend using less colors though!
Then using A England Camelot, Glitter Gal Turbulence and Orly Nailtrition I tried a water marble.