I want to get a tattoo of Tang priest. What are the taboos?

Regular Buddha statues, mantras and spells are acceptable. Just respect it.

In the past, fingers were burned to support buddhas and bodhisattvas in ancient times, which could eliminate crimes and countless robberies.

Buddha statues can be made of any material, such as earth, stone, gold, silver, copper and iron, not to mention skin! Give one's life to build Buddha

It is also a merit! Respect everything! ! Tattoos have to endure a lot of pain and you can quit your job.

Suffering belongs to karma. If the karma is small, you won't get sick and everything will be fine.