The sound and voicing is done great, and melodies are done pretty well as well. My favorite was the first track, with the textures at 0:35 and on. What could have been better is more interesting progression of melody ideas, it seems you (like many others) have an initial idea and add onto it throughout the track, which is good on its own, but I think it would be better if you went on more different directions in a song. Good luck on your next projects!