Here's my view on tatoos. It's your body, so it's important that you don't care what other people think about what you get tattooed on you. I don't have any, but I do want some. I might get some blasphemous tattoos eventually when I get around to it, but whether or not other people approve or not, shouldn't bother you. You're decorating your body with art that you like from a tattoo artist that you like. Would you hang a painting on your wall because other people like it? no. You hang it on the wall because you like it. Same goes for your skin.
The concern about it being dangerous... I don't know where you live. If you live in Saudi Arabia, I would be careful with what you get. If you live in the south, maybe be careful? I live in NJ and most of the people I know either are non-religious or if they are religious, they aren't zealots. Only a few are fanatics, and they are so few that they wouldn't dare do something drastic. Maybe a few words about how they think I'm going to hell, but no threats or anything.
I personally say go for it, but that is all dependent on if it's safe for you, which in most areas of the U.S., for the most part it is safe.