I have to agree on the stick man thing. PT does not emphasize the stick man, and we always yell at people when they suggest elements like "House" and say its for the stick man to live in.
Since TPT simulates air and velocity, Why not show something being blown by air like dust or something like that? Fire could be the main factor of air pressure to make it a bit more flashy. Or perhaps an explosion of some type. If not that, then perhaps a simulation that would define the possibilities of what you could do in tpt. a simulation that shows all of what tpt has to offer.