It's hard to tell from this picture, but all of the white parts have been given a light preshade with some excessively thinned Tamiya German Grey (XF-63). I was on the fence on whether or not to do this, but I decided to should help give the model a little more depth and serve a nice starting point for the weathering since it seems to be predominately located on the edges of his various panels. A little more visible in the picture are the metallic pieces, which look absolutely incredible with the Alclad II Aluminum paint on them. I couldn't be more pleased with how they turned out!
With all the parts painted the next thing to do is give everything a coat of Future before starting the weathering!