Your life dude. I have 3 tattoos and would have more if I could afford more. I will eventually have a full sleeve on my left arm. As it is, I have tats on both shoulders, and my left arm from shoulder blade to elbow.
Just make sure you shop around. If you werre getting a portrait of your mother, would you just trust it to any artist? No, so shop around and look at thier work, find what and who you like. There are many styles and methods out there.
Personally, I'm addicted to tattoo's.... I've got my 1st nine & once I finish flipping this house, I'll probably quickly make it a dozen. I saw a kewl Willie G skull with like flames around it that I'm sure I can find a place for. Currently most of mine are about my girlz (I have 4 daughters). I also have one with the NA symbol. Now if I can just find someone to skin me once I kick the bucket, then maybe it could be art on a wall.....
I'm like danmo. I just haven't found ANYTHING that I want to be a part of me for the rest of my life. Being on my 3rd wife, that isn't even a safe bet. And most jobs that I've had would require them to be covered up anyway.