Email, WTP they will help you out. They sent me some samples of the materials I wished to see and a book. I took pearls which were not foils. It depends on how you paint, if you foil then paint , ghost or solid colours. Our many variables, but they had tons of colours in the book I didn't see online or at least didn't notice until I saw them in hand. The book has small tabs of the material in its so you can't go wrong. Once I play with what I have I'll be ordering more, it's good stuff and easy to work with.