Thanks, I tried to stick to your boundaries of a basic concept that the artist could work with. I had a roommate that was a tattoo artist, and we would draw up all kinds of stuff. But the simplest concepts are the easiest to work with, once you start applying the final design onto skin.
If you want to go in this direction I'd recommend showing the artist all of the images, the final one doesn't really do justice what your artist could likely do with it. You may notice I tried to put a REV in the fist, your artist could do better.