Thanks Simon. The glaze gives an overall plastic look. I have rebuilt the engine (on the right). I did not do a very good job of rendering the bolts. I am not to happy with the second one either. I'll reprint it today on gray paper and try to do a better alignment of the push rods.
I am pretty happy with the cowling. I painted it it and the fairing plates with Testors diamond dust one coat lacquer. Then 2 light coats of Krylon matte finish.