Architect Mat Barnes built his reputation with vibrant houses that embrace both colour and strangeness. But beneath the primary-colours playfulness is a serious message

The renowned fashion designer now pours her creativity into sculpture – and her London home is full of her art

When her son died at 18, Luella Bartley’s world collapsed. Here, the designer opens up about grief, 90s hedonism and the power of art

Simone Rocha’s ultra-feminine yet powerful designs have established her as the most influential designer of her generation