Movement 1
Very pretty track, I really liked the harp.
The Tambourine and the shaker would need to have a lower volume, and the flute sounds a bit too rough. To make it softer, you could add an EQ and cut some high frequencies or add some reverb.
The theme was used a bit too much in my opinion. I'd have loved a variation for the more epic section, or a modulation on the second epic section.
Movement 2
Interesting play on the strings. I like how powerful they sound at key moment, but I think it should be more ponctual, they stay powerful for too long.
I also felt like the string chords were a little bit too cold. Some of the low to mid frequencies that are the foundation of the harmony were lacking a bit, and the sound could have used some more roundness. Maybe you could try to layer some instruments on the chords there ? Horns may be too powerful but you could try with bassoons.
Also a little detail I can't help to find funny is that your flute player must have had a rough time holding those notes for so long haha
Movement 3
Great track ! When I was about to say it lacked drums and a bass, they appeared, and when I was about to say it lacked horns they appeared as well ! Though like the others, I would have liked a bit more melodical development.
Overall, great OST. I would have loved some B sections with variations of your main themes. Maybe the reason why your themes seemed so repetitive to me is that they're not long enough. With a phrase twice as long you'd half the repetitions.
Nonetheless, great job !