The orchestration is quite nice and I think all of the instruments are very well-chosen :)
My only gripe is that sometimes the piano can be startlingly loud (with a touch of clipping at the loudest parts). I feel like the mix could benefit from some compression to help the different sections meld together a bit more. Dynamic contrast is great, but I feel here that the loudness is slightly too extreme and that we would feel the dynamics anyway just through the orchestration (with those big open chords and the more extreme range)
I really do feel the story as well and like how you take us through these different moods. Good job!