Art today can be whatever one wants it to be: a rotting cadaver, a photograph of someone else's photograph, a banana... In this post-modern age of post-truth, of social media and the selfie, when everyone has a high-resolution digital camera at their fingertips, one wonders what would possess a talented artist to sit for days, weeks, often months, to paint a portrait of a friend or a landscape of home. Today, a group of 20 or so remarkable painters...