I got Eni Oken's downloadable Gem instruction book yesterday. It was mentioned at the Wisconsin Tangle Artist's Coalition on Saturday. We were given a demo on gems and the book was mentioned. I love it! But it will take a lot of practice (and better colored pencils than I have right now) to do a decent job. This is my first tile. The Valentine one is my second.
Can't wait to go shopping for some new art supplies this weekend!