Kentaro Hayashi is a weekly regular at atelier incurve jr. in the city of Osaka, a privately run after-school workshop where art specialists watch over children with mental or physical disabilities.

On a visit in late June, the 13-year-old with a learning disability cascaded orange paint onto a canvas, spread it with his fingers and added layers of green and blue.

Kentaro was aided by staff in opening the paint containers but he was otherwise left to his own devices. After about half an hour, he produced an original marbled pattern.