This month’s highlights include the 18th-century Chinese jardinière that Horace Walpole famously used as a fish bowl
A painting by the late American artist Emma Amos and a devotional triptych by the Spanish painter Fernando Gallego are among this month’s highlights
Two significant works by Renaissance masters to the National Gallery in London are among this month’s highlights
An outstanding collection of some 900 Japanese cloisonné enamels is among this month’s highlights
A terrifically grumpy portrait of Goya and a mythical landscape by Paul Bril are among this month’s highlights