tattoo body art designs

If I have a tattoo based on the design tattoo someone, I do not thank them or tell them?
I just got my first tattoo today! Tattooing is an overview of the fox with the head, body and two tails. The main idea that I was a tattoo of forks single person is drawing on DEVIANTART.com. I want to thank them and then to be proud of. But would it be unwise to tell them that I was (and modified) a drawing they did? Thank you very much. ps My tattooist told me today that it was wrong for you to obtain legal rights to certain tattoos. He said that even if the logo tattooed Harley is always his art (interpretation) and to this end any violation of laws of war Copyright.
It is really up to you. Even if they get mad, who cares? Now is your body and can not do anything about it. You do not copy directly from your "tweaked" it. It because he is a new creation and they can not sue you or anything about her.


