Over the years I used many different ones with my screen name. I've had Homer Simpson in his underwear on the couch, various Betty Page pictures, pictures of me with game I've slain, A Clockwork Orange movie poster.
My current one is of my dog Chupa. Rescued him from a shelter after having to put down our second Aussie. He's a Catahoula Leopard Dog. Had several different breeds in mind when I started looking. Most of the rescue shelters really pissed me off.
The shelter that he came from said that his owner had died, & his kids just turned him loose. He was a ranch dog in South Texas. A Galveston county judge who hunted the ranch brought him in. At the time I was recovering from foot surgery and the lose of our Aussie had me a bit depressed. Chupa on our first meeting really just cheered me up.
They had tried placing him for 2 years and he kept coming back. He likes to growl. I think it scared most peole. Thing is he growls while wagging his tail. I took it that he is a verbal dog & growling is just the one of his ways of communicating.