Just a few things.
I've seen the opening for this flash before a while ago and wasn't too impressed, but the scenes in this looks quite decent and the sounds do seem to fall in place during the actual episode.
However, the opening needs a sort of theme song if you don't plan to add sound effects and music may be needed to set in the mood of each scenario. I would be careful with the volume though. Like the music for the rolling credits, it hard to hear.
Other than that is good I think, as long as you work them out as you go along.