OK here are some pics of my progress, the last coat of grey paint is on.
As you can see the effect of the pre shading is minimal, maybe I have put on the last coat a bit to heavy.
I have started to paint in the details by hand.
I had a minor setback whilst doing this, I dropped the paint tin! There was paint on the floor, paint on my desk, paint on my chair and paint on my pants! And just about ALL the paint in the tin was gone (it's amazing how much paint they put in one small Humbrol tin when you spill it all in once)