Actually prokofiev is a neo-classical composer of
the late 19th and the early 20th centuries.
With the introduction of new tonal colour, and an avant garde
way of composing at that time, he created a much more
enriched soundscape in his music than the previous masters.
(especially reflected in his 5th symphony and his 2nd piano
concerto). He did multiply the chromatic visionaries, and
bringing to his music a much more meaningful background
soundscape than the ancestor, liberating the idea of
contrapuntual melodies and the classical tonal idea.