Well, here is my humble opinion as a nearly newbie here:
It looks good overall, except for ayane's bubble in the middle left, where the font size you used was too big and the text isn't complete...
I personally don't put periods in my scans, because there aren't many mangas i have seen that do that (in japanese, they dont put them), but it's ok.
Gambatte!

_________________

I'd like to wake up like that for once in my life...