Is there a way to animate a UV island?
Like if you want to move part in a circular motion, while keeping only 1 diffuse texure. Thus enabeling you to add several islands on 1 spot, like the gears istead of using multiple planes. Is that possible?
You could also have suggested to render the image, instead exclusively using texturepainting. Maybe as a bonus or something. I cna image that some people don't feel like learning another software along Blender.
start a new file, go to top view (7), allign camera to view (ctrl+alt+0), set the camera to orthographic, set the resolution in the Output Properties and render everything else as Aplha by checking the "Transparent" in the Film option in Render Properties.
Then model your way throught till you get the the shapes you want. Plus you can mimic the layers by arranging the objects in the Z-position.
@19:51, Ctrl+L -> modifiers (linking modifiers to the last selected object is also good ;) )