Realistic Hero Art Creation

I need a talented artist to create a single panel of custom hero art; it needs to be able to be scaled up to be printed on canvas or in a frame, approx. 12x18 inches. The artwork should be in a realistic style - well, more like current comic book art styles... (Budget: $30 - $250 AUD, Jobs: 3D Art, 3D Graphic Design, 3D Illustration, Art Consulting, Art Installation, Caricature & Cartoons, Character Design, Graphic Design, Illustration, Photoshop)