I did a grey and pink tile using Indy-Rella a while back, where I used them as fish-like shapes.
Here, I wanted to create the feeling of flames, using metallic markers and going from bright silver to red.
It reminds me of a camp fire, so I think it is a success!
Zentangle drawn on Strathmore, black, ArtRage paper various, metallic, gel pens. Shading done with colored pencil and Copic marker.