it appears from the photo that the tattoo pigment is black although the your skin tone is more difficult to differentiate based on the photo provided. I use the Picosure and have seen patients in your same situation that have undergone many treatments with another laser without any significant results. Simply put, total to near total removal of your tattoo should be possible within approximately 4 treatments with the Picosure. good luck.
I definitely think you should try the PicoSure laser. The technology is newer and the Pico is able to break the ink into much smaller particles, allowing your body to clear it better. Good Luck!
Newer tattoo removal lasers with larger spot sizes and high peak power are now available to help with resistant tattoos. Larger laser spot sizes penetrated deeper into the skin because of greater random distribution of the photons. Black ink is the most successful color to remove because it absorbs all laser wavelengths the best of all tattoo inks. Check with a Dermatologist who has the latest tattoo removal lasers and lots of experience.