how about clone-tooling the model's head away before starting, then you don't necessarily have to match the same shape/direction?
(
Dixipoos Bye Bye Blackbird,
Tue 7 Apr 2009, 21:12,
archived)
I will give this a go
(
Jamnog Sardines in her eyebrows, lobsters up and down,
Tue 7 Apr 2009, 21:29,
archived)