I love it, a phenomenal job for a first piece. I would also recommend for you to downsize your orchestration for your next piece to two or three parts, so you can focus on building the skills of writing melody, harmony, and chords. Eliminate the parallel movement you have in the violin and viola duet, and overall your harmony could be better in some spots. I liked the melody in the violin section after the duet, but the rest of them could be improved as they were not very memorable or singable as @Rabbival507 said. Also, the hundred twenty-eighth note or semihemidemisemiquaver you included seems a bit excessive and inconvenient to read, so instead maybe just change it to a staccato 16th note.
Thank you for sharing, I look forward to listening to more of your music!