[Elizabeth]

For after care, I would buy some Lubriderm ahead of time. I put it on my tattoo three to five times a day to help with the soreness and to help stop the dryness. You neck might be stiff after you get that tattoo but it shouldn't be too bad.
It hurts a different amount for different people. Getting a tattoo on your neck might be worth it in the end, but it will hurt some because the skin is so thin and there isn't much fat on your neck.
As for making it a better tattoo, I would go to your tattoo artist ahead of time to help him plan something for you. It would give you more time to decide if you like the picture and maybe you can get some friend's opinions.
Let me know how your tattoo goes!