So I haven't quite caught up yet, but I thought I'd give you a quick, general review of how I feel about it so far.
I'm honestly not even just being nice when I say that I've already noticed a pretty big difference in the quality of your writing. Don't get me wrong, the first Academy fic was good, but your style of writing was a little iffy and sketchy in places, particularly at the start. I'm not saying this is perfect, but you've clearly become a much better writer; you've really taken people's advice to heart, and I really respect you for that.
Character's seem to be more nicely written too, you've taken away some of the generic-ness, and the dialogue flows much more smoothly too.
I don't think I've read far enough yet to make a real comment about the plot or atmosphere, but so far I like it; it's genuinely enjoyable to read.
Keep up the good work, I'll try and catch up ASAP!