I don't really dig the doors that much in the pics I've seen, and I hate the paint - the body and head are like 2 different concepts. I agree withcha about the dome being too dark, but also the way the body is weathered makes it seem "lesser than". I think if nothing else, they should have painted the insides of the exposed cavities a dark color instead of leaving them bald white.
I've seen another review out there which compared R2 to realistic R2s and I was surprised he was smaller, is that an issue for you? Also, another question, how does the periscope go up and down? That peri looks great.