The basic DivX codec is all you need to play the videos; it's free, without adware/spyware. No need for the Pro versions unless you want to use some extra features when encoding your own videos.

I want to see this hair feature used on the cat.

[nitpick]
Tiny bit of poke-through ... hip through skirt ... one or two frames, about halfway through the first video.
[/nitpick]

I trust you've made further refinements, since this was an early render. Ah, who cares, beats what we've got now. Saving my pennies ....