Thanks, Erikari! Here's something I'm currently creating.

Regarding the circle animation, the forum you linked is not quite what I'm dealing with right now.

I have manually created my path using an existing layer as a guide to align it the best I can, but without deforming the path's vertex each frame, it veers off the intended path within the border layer in front a little. I can see a some janky issues with the positioning of the animated image even with the manual modifications, but it's the best I can do for now.