Thanks guys! Time for a panel wash! As usual, I am using a home-mixed pastel wash comprised of water, pastel chalk and a drop of dishwash soap. For the white and lighter blue areas, I am using a brown color.
Difficult to see the effect on a wide angle shot of the entire wing but if you zoom in on certain areas, you can notice the effect. My goal with the wash, in addition to highlighting detail, is to reduce the physical grooves and holes with lines and dots, which I think makes the surface look less like a plastic model.
Here's the top side of the port wing.
The underside of the aircraft is completely covered with rivets, panel lines and other details. So the wash will almost cover the surface completely.
After the wash is completely dry, it is wiped off carefully with a moistened paper towel. I use small pieces and toss each piece as they get loaded with the dark wash.
The darker blue upper surfaces are treated with a darker brown (almost black) wash.
The effect is much more subtle due to the reduced contrast between the wash and the dark blue camo color.
Next, I'm going to do some post-shading and some chipping using a fine sponge.