I know this isn't about background but...
I think I saw some quite nice backgrounds like:
+ the cloud background.
+the black tree behind that mystrious guy.
+the green bush. (it need just a little improvement)
I wonder where did the other part of the group gone. they were there in ep 1 part 3.
lol I think that was a good idea to remove some part of the unneccery things to low down the movies size.
there was some few drawings error but I just liked it , it made this movie a bit funny. :P <<-- I hope this doesn't let you down. (I know that you rushed to make this good piece of work.
you know.... you should give your self a longer time for you to create your next episode and try not to give it a drawings error as hard as you could.