Artists are not your art monkeys. They are your collaborators. They should be given all due consideration to follow their journey.
The only damn thing I ever learned in all my years in art school was a piece is never done, it is just finished. You have to trust your inner voice, your instincts, when they tell you pencils down. And you roll up your sleeves and you start over again.
And I had worked at the comic-book store almost by accident, because I was deciding to make a living as an artist, be it as an art tutor or illustrator, and that's how I wanted to make my living.
