LEE ATWELL
INTERIOR RENDERING
 
Here I have just applied some cool grey to add some variation. Highlighted the rear view mirror and darkened down the dash and parts of the steering wheel. I have also added a bit of airbrush to suggest a screen.
More darkening of the dash and a bit of work around the air vents to the side. I am not going to work on these areas too much since the idea of the sketch is to show the dash and wheel.
Now is the time to start describing some surfaces, using cool greys on multiply and screen layers.
More work on the surfaces, I like to keep it simple with a very basic lighting set up. Something to note here is that I am not using any paths for the linework here, but this is not to say that you shouldn't if you feel it can help.