Symphony No. 1

This is my first symphony, the piece starts calm and gets stronger and louder, then it goes back to being calm in the 2nd movement then grows into have very dissonant harmonies and then at the end it resolves. The third movement is a lot quicker and has a happier mood. The finally then starts louder and then suddenly becomes quiet and grows throughout the whole movement and ends with a powerful final chord. I've been working on this for a while now, please give feedback on how I could improve it. Enjoy!

https://flat.io/score/63a1125d630d11a8dc8ba128-solar-nebula - Link to 1st movement

https://flat.io/score/63a6f0fa56892f00f254983f-nuclear-fusion - Link to 2nd movement

https://flat.io/score/63a5f7038094f6116a124c7b-supernova - Link to 3rd movement

https://flat.io/score/636c598330cfc6da2f4038f0-big-bang - Link to 4th movement