I wouldn't have known it was a sequel.
I see you took a new direction with this installment of the Don't Trip series, Skaijo. That's not a bad thing: I certainly liked Adam Phillips' "new direction" for Brackenwood. But, you know, somehow I just don't get the same "feel" from this as I did from Don't Trip or This Is UNMEI. Maybe it was that it starred characters that were previously in supporting roles, but I think it was more the lack of action.
PROS:
Is it a sequel to Don't Trip and This Is UNMEI, two of my favorite Flash animations of all time? Yes. Is it fairly good in its own right, without story implications? Yes. Can it be a good starting point for building Ilu as a character later? I hope so, because this animation made me like her for her dreams, even if she does bully the younger kids (or hang out with people who do). You say you did this to improve your background skills? I say you succeeded.
CONS:
The improved backgrounds do nothing to make the characters look better, and their natural scruffiness is made all the more apparent without action scenes. Much of the movie, even at the start of the day, they look kinda dirty, like they've already been through something that day. Then again, it's not as if I'm an artist at all. No, my main complaint is the feel of this movie. Sure, you wanted to make something for the series that wasn't over-the-top "Uli vs. Trip" stuff. Fine. But just having a mellow, slice-of-life-ish thing in what was previously an "action series"... It just doesn't feel right. Not too much of a negative, since I like this episode on its own, but I liked this series for its action.
OVERALL:
I liked the first two better, but that's not saying I didn't like this one. I hope you can work Ilu's character development into future episodes, while restoring some of the action.
4/5, 8/10.