Think about lighting. Extra lighting always gives the space more depth.
You do not have to overcrowd the space. If you have a smaller foyer, think about using acrylic furniture. Acrylic and glass pieces will not take up visual space.
Bring in accessories to make the space POP. Try an over sized flower bouquet and a bowl for keys and loose change.
Think about incorporating a coat rack where family members can neatly hang up their belongings.