Be forewarned if you use PanPastels on black polymer clay. I used black clay and masked off the crow silhouette with frisket film cut on my Cricut. Then I did an overall layer of olive green pastel. Over that I used a silkscreen with pastel to make the light green palm leaves. The colors looked like this before and after baking.
Then I decided I needed to seal it with Translucent Liquid Sculpey because the leaves had no raw clay to stick to and they seemed fragile and ready to smear, plus I wanted to cover up the adhesive left by the frisket film.
I was surprised to see how the pastels practically disappeared into the black. If you look at the round black shape in the photo below, you can barely see the design. I sealed the three smaller pieces on the right at the same time. They’re on white clay and they’re fine. I recall having something similar happen with pastels on black paper that I sealed with spray fix. Don’t make the same mistake I did!