Hey RedBread, the link works! I think you have composed a very nice corporate track here, but there are some production issues that I believe could have led to the rejection.
The first thing I notice is the main guitar theme. It’s a bit too dry in my opinion. It’s not really filling the space in your track the way that it should be if it is the main theme. Perhaps tweaking the reverb/delay, or maybe trying to layer it with some other sounds could help with this.
I think a lot of the sounds you are using are too artificial sounding. This goes for the acoustic guitar parts (especially the one that starts around 0:34), the strings, and the singing/choir part. I would either try to invest in some better sounds, record them yourself, or use them a lot more sparingly in your track. That synth sound that begins around 0:17 is also just a bit too shrill for me, personally.
Mix wise I think there are some issues as well. The sound is overall just a bit muddy and too focused in the mid-range with not enough oomph or clarity in your highs and lows. Make sure you are EQing in a way that is giving each instrument it’s own place in the mix.
Compositionally, I think your track is done well! If you just work on some of the production elements I think you would have a really nice corporate track here. Best of luck!