You did really well considering that this is your first jam and that you're using free plugins (Spitfire LABS is a good choice, they have some very usable instruments). Both tracks were well composed and I think that the tonal instruments were well executed, filled with a good amount of emotion and expression. Love the foley water droplets added to Frostbite Fissure, it sounds beautiful when coupled with any percussive instruments.
I think the only faults that I could find were the drum rolls at 0:58 in the first track (sounds like some compression artifacts, or could be drum samples that are over processed out of the box) and 1:26 in the second track (this one sounds much better but it could be glued a little better in the mix). Check out the free Spectral Compressor (https://github.com/robbert-vdh/nih-plug/tree/master/plugins/spectral_compressor), you can put it on your tonal instrument bus and sidechain it to your drums to glue your mix more transparently. Watch some tutorials on youtube on how to use this plugin, not the easiest to use but its incredibly powerful.
Outside of that, it was a very impressive submission, there isn't much more to complain about. Hope to hear more from you in the future.