A collage is a picture made of lots of little pieces of paper. Butterflies are very colourful, so we’ll need very colourful paper. We’ll also need a pencil, a glue stick and a pair of scissors.

A 94-year-old artist of colored-paper collages is the talk of social media, where she has more than 120,000 followers for her realistic depictions. Setsu Kimura’s creations are photographically ...