It's easy to make a coloured block of text, or a simple diagram (e.g. a flag), but to make it look like it's actually real, you'll need to follow the steps in this tutorial.
In spite of the computer’s capacity to differentiate 255 shades of gray, your printer supposedly can only make approximately 50 different tones of the same color. By using duotones on grayscale images, you can add another color which can contribute 50 more shades of differentiation to your printed images and therefore add dimension to your images.
