So I did a pastel rainbow gradient over my whole nail. Covered up any sponge seams using Wet N Wild Hallucinate glitter topcoat. You can't really see the colors that well, I tried to take an inside picture and an outside picture but it was dark and gloomy out since it is raining today !!
I used these colors, all mixed with white to make them pastels:
I sponged them onto a white base diagonally, and then added one coat of Hallucinate with another coat of Beauty Secrets Hardening Top Coat.