A very impressive effort! Especially if you are such a newbie at composition. Thanks for sharing the score. It’s very clear and shows your ideas well. Please keep working at your composition.
From my point of view, the music is a bit obvious. That is, it’s very much like John Williams and his film music in particular. If that’s your thing then go for it. What I’m wanting to say here is that I would love you to have your own voice. You clearly have the theory and a really good sense of structure, balance and understanding with your orchestrations. So, let your inner ear out, you don’t have to write what has already been written. Explore the orchestra, test different harmonies and rhythms. Give me Arven, not John.
Hope this makes sense
All the best