While there are a few issues that need to be addressed such as have already been mentioned, I don't think you will have any problem getting into most guitar programs in the US. There are a few elite schools which might be more difficult to get into due to the level and quantity of competition, but I don't think you have much to worry about. I would suggest to record it again, but this time practice with a metronome REALLY SLOW for a week and try to feel comfortable with your fingering - then record it again. In order to fight against "boredom," consider changing color and or phrasing on the repeats (ie...on the third variation, you could try doing slurs on the repeat). A clear change in dynamic and articulation can also be used to vary a repetition. Overall, great job - bravo!
Here is a recording I made recently of this piece. Although my playing is not without faults, I hope it might give you some ideas as to what you can do to vary repetitions a bit. viewtopic.php?f=20&t=57777