I’ve been making some simple colour tests, layering light aquamarine with french vanilla with dense white and cutting through it in the bottom picture, and above just a few different colours fused and engraved. I’m leaning towards using french vanilla as my top layer colour in the engraved panels, because I love the bone-like texture it has when I cut through it. I think I’ll use it with colours that don’t react with it, though, I’m not really fond of the interface reaction between the two layers, though it could be a neat thing to explore as representing a kind of pencil or pen-like outline.