In order to finish off my calla lily, I want to give it a depth of color. When I crated my petal around the outside of the center, I had already colored my gum paste using a little bit of food coloring. Now I want to dust on some petal dust to give it a little bit of depth of color and allow those veins to pop.
I'll dip my paintbrush into my petal dust. In this case, I'm using a little bit of sunflower color. I'll just give it an allover dusting, just to create a little bit of difference between the yellow that I started with and this orange color. If I want to, I can make the edges pop even further by adding a contrasting color. In this case, a little bit of sage color goes on my brush, and I apply it just on the very edge, just a little bit so that that outline just really, really pops. Then when I put it in a cake and nestle it between the other flowers, that edge will really stand out.