Because you asked for it, I'll try.
You'll probably want to have more frames of rain so it's clear that it is rain (and not white lines)... you'll want something longer... you should try having more realistic heads. To start maybe try something simple like the Pico heads over the vote buttons. Right now Trunks's face is too far forward on his strange oval head. Oh, here's something... give your characters shoulders. The arms will look better for it.
Hope that was helpful!