Marini developed several themes
in sculpture: equestrian, Pomonas (nudes), portraits, and circus figures and drew
on traditions of Etruscan and Northern European sculpture in developing these
themes with the aim was to develop mythical images by interpreting classical
themes in light of modern concerns and techniques. Marini is particularly
famous for his series of stylized equestrian statues, which feature a man with
outstretched arms on a horse.