A kaleidoscope of colour is illuminating, says Sian Prior

As a child, my unattainable object of desire was a giant Derwent pencil set. I knew that if I could just get my hands on one of those big boxes, my whole life would be more colourful. It took four decades, but last Christmas I finally scratched that itch and bought myself a set of 36 Derwents. I pored over […]
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