On Monday night, it emerged that a complaint has been lodged with Kensington and Chelsea council, forcing Mr Braka to apply for retrospective planning permission Photo: REX FEATURESThe 57 year-old had placed the valuable artworks by two leading British artists in the garden behind his Grade II-listed Victorian house in Knightsbridge, central London as apart of an upgrade.But neighbours of the art dealer, who includes David and Samantha Cameron among his friends, have been left unimpressed by the sculptures by Antony Gormley and Tracey Emin, which were put in the £100,000 garden.On Monday night, it emerged that a complaint has been lodged...