This is actually pretty good.
Some mentioned the previous ep is better but I haven't watch any previous episodes before, so I can't compare it.
So far i think the major issues are already mentioned. Just work on the pacing especially if you are still using 3D. Currently the pacing is too even, thats why it feels a little slow, you could make some parts faster and some parts slower.
And also the backgrounds looks really plain now, its probably a hassle to model the backgrounds, so for still shorts i think its better to draw in flash.
The characters may look a little generic but still acceptable.
And this episode is also a little short, maybe you could add in the fight at the end.
Overall i think there's a lot of potential and i look forward to future installments. Great job :D