Thats kinda cool and a bit dark scifi. Its the kind of tat that you could add to. You could treat it like a tree root that is growing up your arm, across your back, down your spine, etc. And, continue it down your wrist, over your hand and down your fingers. I wonder, can they make a tatoo penetrate the fingernails? Likely painful, if it was possible. Anyhow, congrats for considering one.
S