Without reading your mention of the Thomas Bergersen inspiration, the intro reminded me stylistically of Gareth Coker's Ori music.
The piano felt to me that it was a bit too much "in the front" compared to the orchestra, so maybe using reverb and some volume adjustment? to place it a bit farther in the stereo space could help it blend a bit better.
The bird calls from side to side were a great touch! One idea i got while listening, was how it would sound if you used some other woodwinds/instruments to add a sort of faux echo effect to the calls. I.E having other players repeat the bird calls by lowering the volume on every repeat, sort of like they did the fake reverb on old NES games (just an idea i had, might be crap/hard to implement😅).
Since you had the woodwinds playing the bird calls at the start, i thought that the bird calls/winds would be a more prominent part in the track, but it seemed that the woodwinds got relegated to backing duty until they come back to play the calls again at the end.
I'm not sure how, but maybe the bird call could've been more used during the track somehow, say maybe using just the rhythm of it in the big crescendo part for some background stuff? I'm not quite sure, but felt a bit of a waste to me leaving it so underutilized, since the idea was fun!
Just some subjective stuff i felt while listening 😁.
As a whole the track was great, and I really love the main theme!
The whole melodic/harmonic style was what gave me the Ori vibes, so if this is the type of style you usually write, the scores to the Ori games could be good orchestration study material😉.
Stellar work!