What a beautiful pigment collection! I love them all! I am trying to grow my pigment collection. I don't have very many... maybe 6? As for pressed pigments, they are definitely quite different. I think a lot of people end up disappointed with them because they tend to not be opaque and are largely sparkle, but that's what makes them perfect for layering. I like to do my whole eye look, and then at the end for a little extra oomph, I dab some pressed pigment on top with my finger (usually just on the lid). It layers over other shadows and pigments really well without just covering up what is underneath. Sometimes I dab on a little glitter glue first because there can be a little glitter fallout throughout the day.