Hello, everyone.
I am new to CTA. I have a painting I'd like to animate. I have prepared it with various layers: non-moving background, foreground elements. Then I have my figure with head and head separate; both png alphas.

In the tutorial for the chihuahua, they make the head by masking it in CTA, but I already have it separate, so how do I use that.

Also, in my painting, the eyes are partially closed. Should I prepare the image with the eyes open?

Thank you