Does having a funny picture help you in any way to get the job that you want? Does it make you a better programmer? Does it present you as a person who more people would want to work with or is it something that will cause more people to filter you out than to be enchanted with your quirkiness?
When designing materials to help you get a job, you have to evaluate everything on the basis of whether it helps you get the job you want or not. If humor is a nonnegotiable to you in the workplace, then a funny picture will help weed out any company that doesn't have your sense of humor. It will take you a lot longer to find the postion you want, but when you do, it may be a better fit.
Just be aware that when you do something like this, you will filter out many potential jobs.
If humor is something that you personally enjoy, but it is not necessary in the workplace for you. then don't put the picture in. I have a good sense of humor, but it is not necessary for me to express it at work and I certainly don't want to work anywhere that thinks a sense of humor is more important than technical skills or professional attitude. That doesn't mean that jokes never come up in the workplace or that I don't participate when they do, just that it is never a factor in determining which jobs I am interested in. I am looking first for technically challenging problems to solve, not fun, when it comes to work.
But what I want and what you want are different, so build your brand based on waht you want. Just be aware that it will limit your possibilities - perhaps more than you would want.