ugly, deformed, noisy, blurry, distorted, out of focus, bad anatomy, extra limbs, poorly drawn face, poorly drawn hands, missing fingers. 
Do not include modern or high-tech elements, women, children or characters other than the older man described. Do not draw a luxurious or commercial bathroom; it should be a simple, residential bathroom. The man should not have dark-colored hair or beard, and should not be wearing bright or gaudy clothes. Avoid shoes or socks on the character's feet, and don't include any furniture or decorations other than the box of baking soda and the bowl of bubbles. The lighting should not be strong or dramatic; it should suggest a soft, peaceful everyday atmosphere.