Traditionally no, but religion itself has developed to the point that anyone can make their own decisions and as long as they stay true to their faith they can still be religious.
its okay if anyone gets a tattoo as long as its professional and it makes you happy, do what makes you happy.
Sure. There are Christians that I know with tattoos all over the place. Honestly, you shouldn't be paranoid about that kind of thing. It's your body; express yourself. Some people even get tattoos that are specifically Christian such as bible verses or a cross. You don't have to do that, of course, but it just goes to show that it's up to you.
What I suggest to people that want a tat...
Take the cost of the tat and subtract that from all the money you make and benefit a tat has.
If the the balance is minus, it is useless to you.
Sure. Go for it.