An award-winning artist has visited 53 nature reserves around the UK to produce drawings using a ballpoint pen. Cy Baker, who ...

Try experimenting with different colours of ballpoint pen to create layers of texture. Light-coloured felt tips can easily pick up darker colours from a drawing surface. This can be avoided by ...

An ordinary ballpoint pen is held in a spring-loaded carrier ... which uses Canny edge detection to create an outline drawing, then fills in the empty bits to create bright and dark areas.