Cool idea, tho I'd be careful about making it a little more symetrical. the red inside the scorpion isn't symetrical. the front leg is a little thinner on the right side and the "under claw" is longer on the right side than on the left. Some of these things could be because your new or your camera isnt straight on. but it does seem like it is.
But this would be a good tattoo in it self, though the mentioned points would make it amazing. In my opinion.