I really like the way you go between quarter notes and third notes on this song. It really helps the melody sound unique.
However, if you're going to use computer generated voices, I suggest you heavily vocode them. CG voices rarely sound good without being modified extensively. Not only that but the CG voice mispronounces the words "echo flight".
Also, the guitar is a bit too powerful since it distorts the entire song sometimes.
Overall, defenitely your best song so far.