Hi friend, just had a listen to your track with headphones. The music is quite good and I like it and I really don’t think that your rejection is because of the musical content. But with all the respect and with the only intention to be helpful, you need to improve your production skills (mixing and mastering) as well as orchestration (in particular how to write for strings, eg give it wider intervals in the mid-low to low range). things like…better use of panning (balance or stereo panning), reverb (not too much in the low end), using better sound libraries to avoid the midi-like sound, and overall balance of the track. I would recommend Samuel Adler (the study of orchestration)! It’s a great book as well as subscribing to ask.audio academy and do some mixing mastering courses. I have done it and highly recommend! I wish you all the best!