Cooler said something about the fact that unless the celebrity as copyrighted their face/look/features that it's a fine line and the likeness isn't necessarily a copyright violation. You'll have to ask him for more on that though, I got that second hand in the copyright forum when I asked about the very topic about celebrity look alike poser figures.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi