I'm not a fan of it. For a tattoo like that either go big or don't do it at all, as it is it kinda looks like you drew a wolf on your arm but were too scared to commit to any real space and you got a tattoo just because you wanted to get one. I think generally for guys big is the way to go unless you're getting letters or something (that and just the size of guys, even guys that aren't that big, small tattoos just don't look good). Speaking of the wolf, why a wolf? A tattoo like that needs to have a good meaning behind other than, "wolfs are cool." I have a friend with a butterfly tattoo that she go because butterflies are pretty.
A tattoo is an extension of your body! It has to flow with the muscles, tendons, bones, etc otherwise it looks like a cheap temporary tattoo! I have one on my foot and it looks like I was born with it there! That's a true tattoo
I'm not really a fan of tattoos in general, but the best tattoos have meaning to them. Don't just get a wolf because it looks cool, or because you're "a lone wolf" (too cliche), get something with meaning to you personally.