That's good line work (I know pun). Is that your inner arm? bet you cried a lil. I like it, my boss has a slippery fig 8. I keep looking for images of a gray scale doug fir silhouette for my fore arm with a twig and cone detail in the side.
Thanks Robinia, It is the closest to what I have in mind from the books I've looked at. Perhaps I can tweak it on photoshop, or just have the tattoo artist draw their own from it.