To decorate your Christmas tree with ribbon, you'll need to start with a basic green or silver tree and add a layer of ornaments to give it a base color. Next, use a white or silver ribbon to create a cascade of lights up the tree, starting at the bottom and working your way up. For a finishing touch, add a beautiful bow at the top of the tree. To create an even more extravagant look, you can also add garlands of tinsel or strings of pearls to the tree.