With his decorations for the front of The Tate Britain, the Canadian artist Alan Kane intends to highlight the divide in art. The decorations, called Home For Christmas, show art as an academic convention and a more common creative act in his installation, showing until 6 January 2018. With candy canes, Christmas pudding, antlers for the lion and horse monuments sitting on the roof, snowflakes and illuminating pillars, Kane shows that Christmas decorations for your house can also work on one of the capital’s leading art galleries. Tate, Joe Humphrys