The twig sketcher is a brilliant artist, and I'm a big fan of his work, but I have noticed that the recent years he looks like a twig himself. He should eat more because being that thin is not healthy, is not nice and is going to give him health problems in the long run. There are no excuses for being that thin other than not eating properly. And in case he doesn't feel the urge to eat then he should seek immediately medical help because eating disorders are dangerous and lethal.