Track 1: immediately, I am drawn into this cool, unique orchestration, an awesome cinematic combo of electronic and orchestral tracks. Great playing on the electric violin! Never be afraid to show off your other talents. even if you aren't perfect, it is a major feat to record and mix your own stuff.
Track 2: I love this instrument in the beginning... feels like a harp, but with a beat delay on or something. Ramping up the tempo was an awesome decision to slowly increase the intensity! Those tempo changes definitely gave this piece a sense of mounting energy.
In all, these two pieces are great, and you did an excellent job. I have no advice, I think you've found your voice and you do what you do well. Maybe next time, something more outlandish would be cool to hear... Keep writing!