This is an awesome submission !
Orchestration is very well made, as well as the composition in itself. I really love your melodies and musical ideas, reminded me of some very famous themes and soundtrack (LOTR for Harmony, Final Fantasy for Arrogance and Discord for example)
Rebirth is very emotional and well written too, I loved it. But I must say, Beginning is my favorite, full of hope and wonderful colors.
Very well done, congrats !