Done and Manner

When does a painting get completed?
People usually say a moment when the painter puts down their brush or when
there is nothing left to paint. The expanding ash of the volcano was painted on
the small canvases. There are a total of 25 canvases, and I completed them
according to the number of them. However, there is a possibility of painting this
work to get wider ashes by adding more canvas. Therefore, this painting is both
incomplete and completed.