This isn't the stuff you find in a can. My son introduced me to the fabulous taste of home made tomato soup. He found the recipe in the Moosewood Restaurant series. Fabulous recipes. I use them all the time. When we grow tomatoes, we always end up with too many. This is the perfect end of season solution. My technique, though time consuming, is simple. I start with a preliminary sketch in graphite. When my design is satisfactory, I ink the sketch, using a black, 05, pigma micron pen. I use Prismacolor pencils. Each area is a layering of about 5 different colors, going from dark to light, until the paper is totally burnished. Once the coloring is complete, I re-ink to make the line work a true black. It is then sprayed with workable fixatif to seal, protect and prevent wax bloom.