"The last major organelle you need to add is some leucoplasts (the plain oval). "Leuco" means "white"
so don't color them. However, you might want to add some dots or circles inside of them to represent the substances they are storing. Leucoplasts are like warehouses that store the proteins, fats, or carbohydrates that the cell manufactures. Label a leucoplast. (You could color the substances they are storing.) "