Styling tip: Place the tallest vase in the center and cluster the others around it, working from tallest to smallest; fill the vases with seasonal blooms or cut branches. For ambience, scatter a few tea lights around the vases.
Before going this route, be realistic about the amount of light your foyer receives, as well as how much time you have to commit to caring for houseplants — then get help from a local nursery to choose plants that will do well in your space.
Place a sculpture or vase in the center and surround it with interesting books. The table shown here is in a dining room, but without the chairs, it would look right at home in a foyer.