Using Photoshop Smoke Dispersion Brushes

Such an awesome video, looks way better than a Photoshop action when you take manual control over an effect like this one.

superb

How do you rotate your brush?

What if you dont already have the color you want to use for smoke, in the picture? I have a dog on a black background, so no cool smoke colors avaliable from the image itself

when I liquify the distorted image disappears

Thanks, I learned something new.