To wash your hands properly:
Wet your hands, then apply soap.
Lather vigorously for 15 to 20 seconds.
Rinse with water.
Dry your hands afterwards with a clean towel.
Reducing the complexity of the images by removing the shading to make them pictograms would reduce them to 1 kbyte each and also make them easier to understand. A simple animation also could be made from the images.