In 2019, South Korean boy Leo Park began posting detailed drawings of buildings online; seven years later, at 16, his freehand art fills a 30-city British colouring book and has attracted over 500,000 followers

• Pictures: Colour your streets and Instagram/Leo ParkAt 16, South Korean artist Leo Park has taken his detailed drawings of buildings and streets into a colouring book featuring 30 cities across the United Kingdom.
• The teenager, who began sharing his artwork on Instagram in 2019, has collaborated with British company Colour Your Streets on Enchanting British Cities, a collection of hand-drawn illustrations featuring famous landmarks and local architecture.
• The book was released in June as a limited edition.