Experimental.
This paper is from the same package as the tan I used for yesterday‘s drawing. I like the color, but it turned out to be rather difficult to tangle on. I ended up using metallic and glitter gel pens. Unfortunately, they don‘t show up well on the image here, but it really does look a bit better in person.
Zentangle drawn on cocolate cardstock using metallic Pentel Slicci gel pens, Kaiser metallic and glitter gel pens, and Zig Wink of Stella glitter pens. Highlights and shadows done with colored pencil.