Here's a new update. The head has dried now and i have cleaned the buste. I put it into a bath to take the grease of. It now has a very thin coat of primer.
The MP40 will come later. Next step is to paint the coat. I think it is some kind of sheep leather. I have some good references. The leather has some very interesting curvy thin patterns al little like small lines in reality.
greetings John.