"What is the Sound of the Single Hand? When you clap together both hands a sharp sound is heard; when you raise the one hand there is neither sound nor smell. Is this the High Heaven of which Confucius speaks?"
-The Zen Master Hakuin: Selected Writings
I admit, I'm reluctant to post photos of my arm for fear that I'll weird people out enough to run them off. it is a weakness as I should not be ashamed of who I am, what my body is. I do wonder, though, how much one arm affects my demeanor and interaction with people, how much it aids or retards certain things.
It is silly to be concerned, I think, over things I cannot help. So, make a very obvious photo of it.