I started by painting around each nail with 
NailExperiments - Easy Peel Latex Barrier. When that was dry, I sponged on a gradient using 
Beyond the Nail - Daffodil Creme & Spring Red Creme. I did about 3 coats, and then peeled away the Latex Barrier while it was still wet so it could peel off easily. I painted over each nail with one coat of 
Beyond the Nail - Summer Citrus, and then added one coat of 
PRO-FX - Quick Dry Topcoat to smooth everything out.