At the end of the year, at SAPO, there was usually an illustration to replace the home logo and celebrate the event.

This is the process behind the 2013 logo.

1. Sketching ideas.

2. Base shapes and values.

3. Defining contrast and details using only grey values.

4. Adding colors with Overlay layer mode. This preserves the  grey values, and only adds color.

5. Finishing details. Adjusting Levels and  Hue/Saturation filters on the overall image.