Lev Yilmaz — American Artist born on December 30, 1973,

Levni Yilmaz is a San Francisco based independent film maker, artist and publisher, best known for his “Tales of Mere Existence” animated comic series... (wikipedia)

A lot of people feel that there is less artistry involved in cartoon making unless they have painstaking control of each frame.
I don't personally try to balance my work because I operate under the assumption that anyone reading or watching my stuff isn't having a particularly balanced day anyway. But negative attitudes just amuse me more than positive ones.
Even in a gleefully negative comic, there is optimism, although it's slightly hidden: It comes out through a comic character's sheer tenacity. He keeps going and trying to find some sort of fulfillment regardless of his perpetual failure record. That's a form of hope, a form of optimism. Really hokey I know, but it's true.
When was the last time someone told you 'Look at the bright side of things' when you were depressed, and you actually paid attention to them? Maybe some people do, but I sure as hell don't.
When you get down to it, at it's root, Comedy is truth, absurdity, and pain. One of my little mottos is: 'Do you remember the Peanuts cartoon where Charlie Brown kicked the football and kissed the Little Red Haired Girl? Neither do I.'