I think it needs more work.
This is a nice try but i think it needs just a little more work.
The sound is terrible...
and also like you said it kind of loops but i think it is just playing the note twice.
I dont know how to fix these things because i dont know what you did, and even then i most likely wouldnt be able to...
I think that this is an imcomplete work in progress and you should fix it up before submitting it.