Lo, the full, final sacrifice (Finzi) orchestration

FFS orchestrated.pdf

Hello all, as a church singer I don't really get to interact with the orchestra too often but given that corpus christi is coming up I decided to orchestrate Finzi's Lo, the Full, Final Sacrifice as my first proper orchestral work. I literally just picked the basic orchestra template and filled it out based on the organ part, but I think it came along quite nicely. 

I'm also kinda broke (I spent most of my money on one of their organ sounds which was a good investment imo) so I don't have fancy software or sounds so it's literally just the free musesounds... the choir playback has been pretty scraggy recently, and they also happened to have recently published a paid choir soundpack - coincidence?

Once again this is my first proper orchestral work so some feedback/advice would be very nice!!

-develop331, and sorry to the flutes

To those who have not had the pleasure of listening to the original, here is the score https://bnf.cn2.imslp.org/files/imglnks/caimg/a/a2/IMSLP903191-PMLP1420925-Finzi_-_Lo%2C_the_full%2C_final_sacrifice.pdf and it can be found widely on youtube, but my favourite performance is