Ahmed Rabbani was held in the US detention centre at Guantanamo Bay for nearly 20 years and was eventually released without charge in February. Ahmed says his paintings denounce the torture he suffered at the hands of his captors and is asking the US military to return the artwork he painted in Guantanamo Bay. Our Pakistan correspondents take us to an exhibition of his other work in Karachi. Also on the programme: we check out a sold-out Vermeer exhibition in Amsterdam, as well as a new exhibition at Paris's La Villette venue on veteran filmmaker Tim Burton.