Wait, what? Is it me, or does your sentence contradict itself? You were basically saying "I don't have it. Also, I do have it." Though, you probably meant to say "I don't know how to fill in the variable name, but I have my picture resource."
In that case, use the picture's lump name for the FACE variable. For example, if your face picture's lump name was FACEBOBO, you would put FACEBOBO as the FACE variable.