Agree send a nice looking head shot  will give you your best chance at jobs. maybe suplemented with  something a little more casual.
the photo doesn't say I want a job  it says I want to show off and shock people and I would assume  many of your cards get round filed before they really get to important people.
Your face and perhapse your chest will be a much better selling point for you IMHO.
What kind of jobs are you going for?
I think the avatar you are using here is a strong image good for a postcard.

Facebook is not the USPS.

The terms of service pretty clearly spell out what Facebook does and does not approve of. And honestly, I'm glad that Facebook does a pretty good job of making sure that it holds people to those standards.

I know that this site permits nude images, so I don't look at it when I'm at work. But I do look at Facebook at work during breaks, which is permitted by my employer, knowing that if I happen to have a nude image pop up on my screen it is because someone is not following the rules that they agreed to follow.