A "professional" artist is someone who accumulates a profitable sum due to business, self-employed or otherwise, as a direct result of delivering quality products and/or artworks. A degree, gross income, and skill means nothing in terms of professionalism.

Voted for "makes a living through selling art."

loves his or her art no matter what but can take criticize

someone who doesn't look down on someone just because they do not have formal training or cause they are bad at something, who is willing to offer help in some form to improve another's artistic understanding.

Someone who loves their creativity and strives to improve it.

beauty.

Someone who loves it, whether their good or not.

someone who loves art and love making art!

A true artist is someone who loves what they do, and draws the world through their eyes, and shares it with others :3

someone who loves doing his art from the bottom of his/her heart (and the others said on your poll)