A Norwich artist with a rare talent showed off his skill at an international gathering of creative experts.
Martin Mitchell, 52, of Friars Quay, attended the fourth biannual International Mezzotint Festival in the Russian city of Ekaterinburg.
The self-taught artist started out doing etchings before moving on to the traditional skill of mezzotint about 10 years ago.
Mezzotint is an elaborate form of engraving on copper to produce a tonal print.
It was developed in the 16th century and was thought of as high-end art in the 18th and 19th centuries. Photography brought about the decline of the skill.
More than 700 mezzotint engravings were on display at the festival by 99 artists from 33 countries - including work showing Norfolk's trees by Mr Mitchell.
The 52-year-old, who runs Muspole Workshops in Norwich, said: 'Mezzotint is rarely practised now. It was a wonderful opportunity to discuss people's work.'
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