I did my "sketch" of the Mantis in Photoshop by cobbling several photos together to get the pose I liked, and found a nice Celtic knot design for the background. I transferred the image by punching holes in a flat layer of Sculpy using a pin.
Then I roughed in the shapes. Turns out that the Celtic element didn't work as hoped...it's too large in scale and makes the Mantis harder to see. Live and learn.
The last phase was painting it with acrylics to create a "faux bronze" effect.
UPDATE: I
decided that the background was a bit hard to read, and competed with the Mantis. So I muted the background tones, and added
more "patina blue" so the Mantis would pop more.