Create a close-up image of a slice of tiramisu on a large white rectangular plate. The tiramisu has three distinct layers of soaked ladyfinger biscuits and creamy mascarpone cheese, topped with a generous dusting of cocoa powder. The layers are slightly uneven, with some mascarpone spreading out onto the plate. The background is black, emphasizing the tiramisu, with two hands partially visible holding the plate at the bottom edges.