Well...

Eexcluding the robot sound which is more about the program used then it is about the composer, this piece really does need some work.

First off when you're composing with a piano, you've got the luxury of being able to do a bass clef and treble clef on the same instruments, gives you a lot of options as far as creating chords and utilizing arpeggios and stuff on a single instrument, and you don't really do that here. My advice is try messing around with some bass notes, even if it's just playing chords or something, it'll really add a lot to the song.

Secondly, maybe try doing a bit more with the melody. Right now it seems like it's just eighth notes going over and over, nothings really changing, nothings really happening, and that's makes the listener get bored pretty fast. You can't really hum along to this piece, it's just too random. Now honestly I can't give you any advice on how to write melodies, that's just something that a composer has to come up with for themselves, but what I can say is listen to some classical pianists and try to get a feel for what they're doing with melodies. And try using other not lengths as well, give the piece some time to breathe.

Hope that helps a bit, best of luck to ya.