Painting is very easy. I use Floquil Engine Black out of a rattle can, over this I brush on powdered hard pastels with a big soft brush to highlight the detail. The water tank, stack, front wheels, drive wheels and the tender have had a coat or two of Testors Dullcote. I still need to do this to the rest of the engine. I use a hard pastel stick for the white trim on the wheels and the tender floor.
Best example of the KISS approach I have ever heard!
A great inspiration, and a reminder that you dont have to make things so damned complicated all the time.
But I guess that if you had the chance to ask Leonardo da Vinci about his drawing techniques he would answer along the lines "naw, I just grab some red crayons and some paper and start droodeling..."