Thank you very much for the nice comments, Keith!
I have no problem sharing my oil mix, my friend!
I use mat sand 63 humbrol for undercoat
For the moment I use a mixture of
English red and brown madder alizarine for base 70 - 30%
Highlighting for the first time with a little yellow ocre.
Than I light it more and more up with Napels yellow and white.
The cheeks I use a little red and burned sienna.
For heavy shadows I use a little brown madder alizarine on a subtile way.
All Windsor and Newton, and all wet on wet.
All the best,
Eddy