A spectacular wall of bright blue images irresistibly drew my attention to the Green Art Gallery stand at last year’s massive Frieze art fair, held in luxurious tents in Regent’s Park. A Dubai-based gallery was showing the work of two Delhi-based artists, and yet here was Chamberlin, Powell & Bon’s Barbican Estate. I was intrigued: British brutalism from a fresh perspective, and in an international context.