Drawings with colored pencils are more difficult to make. You can't use colored pencils that we normally use in coloringbooks because, for example, they are not colorproof. The intention is that the color will stay beautiful in 50 years from now and will not fade. In addition, the pencils must contain some kind of oil so that they can mix better together so that I can make the right color.

The drawings are therefore built up layer by layer. A drawing of size A3 takes me more than 50 hours to make.