In 2011 my friend Tony bought a kit of a 1:1 scale Zuul head and asked me to finished it for him.
I layered the skin in greens and greys with a dark wash overtop. The mouth was given an initial coat of pink.
The teeth were a bit of a pain. I glued them in with Gorilla Glue but they didn't flush into the mouth. I wound up puttying the gaps as best I could.
With the teeth attached I layerd the whole mouth in pinks and purples. The teeth were built up from brown to white. A final coat of gloss gave the mouth a shine.
The horns were painted in layers of brown, grey and white then attached with Gorilla Glue. The eye lenses were glued in.
As a final touch I hooked up a set of LEDs for the eyes.
For the most part it hangs on Tony's wall but it does occasionally find its way to display tables at conventions.