Preheat oven to 180C degrees. Flour and greased tray. In a bowl mix flour, sugar, baking soda, cinnamon. In a large bowl, beat eggs. Add the oil. Add flour mixture. Blend until a homogeneous mixture. Add raisins and grated carrots. Beat well. Pour the dough into the prepared pan. Bake about 1 hour. Leave to cool in the pan. The glaze: In a bowl, beat the cream and cream the feta cheese. Add powdered sugar, orange peel and cinnamon. Mix everything and bake the cake evenly. Optional you can sprinkle with coarsely crushed walnuts.