Kindly review this 1st movement of a planned symphony.

Please review this first movement of a planned Symphony in D major. It's a work in progress and I am aware of a few idiosyncrasies that may in fact be structural flaws, but I'd like to get all feedback. Many thanks in advance!

I wrote it in Musescore and the recording at the link was rendered using the Aegean Symphony Orchestra soundfont.

Many of the block chords are intended to be percussive and not harmonic in nature.

Thanks

https://musescore.com/user/28524096/scores/34482398