When I look at Johan van Mullem’s paintings, I’m reminded of that Bob Dylan phrase “smoke rings of my mind”. For the Belgian artist’s instantly recognisable works are ethereal evocations of his subconscious, dreamily configured as abstracts within a barely recognisable face. The artist pours his emotions on to the canvas, almost peering inside his head, and using expressive brushstrokes to create something striking, haunting and mysterious.