Hit this one with a little bit of parchment acrylic on walnut hardwood.
I did some outlining/light scoring. Some painting. Some 3D engraving. Oh crap - the paint is all gone. Paint again. Engrave again.
It’s subtle but a neat effect. I’m glad that I engraved back a final pass over the last acrylic paint layer. It gives it a bit more weathered of a look; like it’s actually part of the work rather than just laid on top.