Curator’s inspection
Move across the painting — or drag on touch — to study brushwork and craquelure through the curator’s loupe.
The Return of the Prodigal Son
A father's two different hands rest on a shaven, kneeling son — mercy painted at the end of a life of loss.
Painted in Rembrandt's final years, after the deaths of his wife, son and partner.
The parable is from Luke 15; the elder brother stands at right, upright and unmoved.
Source: Wikimedia Commons. Public domain work; reproduction licence as listed at source.