Choral Introduction to my Symphony No. 1

Choir Intro.pdf

Attached is the score and audio recording of the first few bars of a symphony that I've been working on. I'd just like some feedback as to whether it sounds like something out of the romantic period - that's the style that I'd like to emulate the most. I love Rachmaninoff, Mahler, Wagner, Tchaikovsky, all the greats, Mahler particularly standing out for me. I've made no lyrics to the piece, but it will follow a sombre, relating to death, and resistance against death kind of mood. The opening melody, characterized by the rising sixth, falling seventh, then back up a semitone to the dominant, is the main theme, and is repeated throughout the symphony. I'm just looking for any kind of feedback on how I can make this more classical.