Now I only have the golden-brown interiors of the sunflower blossoms left.

This is the first jigsaw puzzle where the “sky” is easier to finish than the motif itself. The sunflowers are all the same colour and have no distinguishing features, no lines. So it comes down to the shapes of the pieces – but also to the brushwork. I’m learning where van Gogh has slathered on the paint thickly, where his brushstrokes are long and even, and where the canvas peeks through.