The sounds were fantastic! The plucky arp and the bubbly thing-a-ma-jig you started it off with had me completely ensnared. However, it never really changed up...
So;
Strong points: 1. sound design/atmosphere 2.harmony/chord structure
Things I'd work on: 1. repetition 2.Melody
I have the same problems with many of my songs and I'm working on it too ;)
Keep it up though! That stuff is DOPE!