Great stuff - love the melding of synth and orchestra! Love the percussion breaks.
Despite your doubts, production is good! - you’ve got this!
Compositionally, perhaps a little more automation on those legato strings to really bring them to life! I also think a touch more melody might give a little more direction to the listener but that being said: its dramatic, its unexpected and its great!
The fact you did this on a phone is crazy! Can’t wait to see what you produce on sufficient hardware!