Come on, what is this?
I mean, I think the frame-by-frame made a good first impression, but the fact that it's just a short loop totally ruined it. The music was okay, but not enough to sway me towards a higher vote. If you had simply put some more substance into your movie, you might have had something to please your audience.
I understand this is your first submission but that's no excuse to make a poor debut to the Portal. You seem to have potential, but that alone won't get you anywhere unless you make good use of it. Hopefully your next submission will demonstrate a greater degree of effort.