As I began figuring out what I most enjoy doing, I became interested in overlay. What initially excited me were geoglyphs and petroglyphs. I find these ancient works (some call them "rock art," but that's a different discussion/argument for a different time) particularly inspiring.
The Colorado River basin holds numerous geoglyphs. In southeastern California, you'll find the Blythe Intaglios (and I wish I could find the pendants I made, temporary casualties of moving). There's also the Fisherman Intaglio, or Bouse Fisherman near Bouse, AZ:
Here in New Mexico, I serve on the board of a not-for-profit, that protects a large expanse of petroglyphs. This a charm bracelet I made for our founder, rendering several actual petroglyphs from the preserve:
And as a last example, a member of my personal pantheon of shamans, that is, a totally made up character, in14k yellow gold overlaid on sterling silver:
Shaman #1: Sky
One of the things I love about overlay is the characters I get to know through the process of realizing them as jewelry.