8.5 out of 10 (You're Going Somewhere w/ This)
Man, when I hear chords like this I get all kinds of ideas for melodies.
I'd highly suggest that if you want to build on this, I'd start including some higher melodies at around the 0:27 or 0:55 mark, right after the repeat. Throw in a 'soloish' piano feel to give it that full sound.
You could easily extend it by coming up with another chord progression after the 1:08 mark. Instead of repeating, start that new progression to bridge the original melody... making it sound less repetitive.
Good job, though. It's going somewhere.