That is pretty cool!
A Google Image search for tattoo over scar gives more examples. But none as pretty as the one in the OP.
In the above image search is also this image of a man, a survivor of being struck by lightning, with a scar on his back made when the lightning struck him. It looked kind of beautiful, so I clicked on it to see if it was an accident or purposefully made.
It led to this fascinating page on Lichtenberg figures; the shape of lightning. Enjoy!
Sorry have to say this - it’s a bunny. Sorry that did not come out right: it’s a BUNNNY!!! squeeeeee
Are we talking about the one in the OP? If it’s a bunny, it’s one of those short round ear bunnies with long fluffy tails.