These were beautiful, though a tad quiet!
Outside of the volume, if you decide to go for a more realistic approach with orchestral instrumentation, bear in mind the flute player will have to breathe at some point! The flute you had in One Step at a Time was a beautiful pairing with the piano, so just keep in mind fading out some long notes to simulate a stop for breath and you'll have yourself a phenomenal piece!
Otherwise, really great job for someone just starting out their game dev journey! Keep going, cuz I wanna hear more!