Excellent for a first try!
I must say, I am duly impressed, and if this is your first try, then congratulate yourself son, because this work is very very good.
Let's start with the positive:
The opening with the brass is well-constructed, and the chorale part that comes in afterwards is generally interesting and pleasant to listen to. You do well with the melody and keep things interesting and moving at a good pace even when you slow down. I like how you work with secundal harmony, that is, harmony based on seconds (intervals), because it's a nice change of pace from tritone harmonys. Good on that, Gandalf.
The string part that comes afterwards is also very well done, and I like the moving about you did with the high strings.
If I can criticize anything, it's that at :30, for some reason, the sound for some of the intruments cuts off, which is a bit disjarring.
Other than that, this work is great. Keep up the good work.