we just had a lesson on the tattoo thing at our church. what the pastor said about this was it was a sin to get tattoos that depict cult or following of false Gods.
I don't think it says in the bible anything about women wearing their hair up. it does say a woman's hair is her glory. also says women should wear a covering on their head to go into temple. it says a woman should not dress as a man.
people tend to translate things the way that suits them sometimes.