Interesting Series...
Having watched the whole thing through, I must say that I am impressed with your overall work. Your animation has improved greatly with the progression of the series. Allbeit, it's not perfection, but you've made leaps and bounds in developing your skill.
Your story, however, did not have the same progressional strength. I was intrigued by the high level of potential of the basic plot-line, but it does still require some improvement. Things took longer than necessary to develop. At the same time, the developments that presented themselves could have been extended into sub-plots to further the complexity.
As a whole, I consider this a fantastic amature work. If you can earnestly work on improving your flaws, you will be professionals within the next five years.