Looked at the whole series...
I didnt finish the last episode, but I'm impressed with your ability to construct a fully functional RPG. What I think could use some more work is the story and the plot. Between episodes 3 and 4, I think, there was a big skip in the story. I probably missed something. The series also seems to lack an overall objective for the good guys that is present in all episodes. Anyway, be thinking of an objective for the good guys, a climax, and a resolution to work to for the whole series, and I think that may help you in making future episodes.
Anyway, the voices definitely help the quality of the animation, the battle sequences have been getting much better, and I like the way you have added an exploration segment. Very good improvements. Keep up the good work. :-)