Oskamp, Nils - Representative artwork from advertising icons to editorial illustration by this artist based in Hamburg, Germany. Oakley, Jacqui - Freelance illustrator based in Toronto, Canada, showcases her traditional media portraits and conceptual artworks. Orvidas, Ken - Stylized conceptual illustrations using paint and collage. Olsen, Nathan - Illustrations, comics and prints. Includes portfolio, blog and shopping. O'Brien, James - Children's and editorial digital illustration specialist. Orris, Sandra - Examples of illustrations of biological subjects are shown done in pen and ink, colored pencil, watercolor and scratchboard. Ogre, Yoko - Tokyo based digital illustrator. Ogle, Mary - Gentle and colorful illustrations for children's books, advertising and web design.