Place everything in a blender and mix until smooth. To create the dual-layer smoothie, blend the peaches, clementines, greek yogurt, ice cubes, and 3 tablespoons of apple cider first. Divide the contents into two cups. Rinse the blender, and mix the rest of the cider, kale, banana, and celery. Pour the green mixture on top of the orange mixture. You may need to stir the green mixture with a spoon a bit to draw out more of the green color.