I seen this aircraft many times in person,in and outside,but I got to tell you,it is flat gray. Besides that it is a truly nice work you have done with this model!!!!!!
Strictly speaking from what i am seeing in my screen, my perception is that of the basecolor has significantly shifted from the last episode, what i am looking at right now has a distinct yellow tint to it almost like a sienna. if this is really the case and not an issue of display and video then i have to say i do experience similar results with gunze aqeous colors (w/ lacq. thinner) wet vs. dry as well and i'm finding myself steering more and more away from using these as a result. As for the color tone i am one of those folks that don't bother much as as long i'm in the ballpark, but in this case it's something else - prevented you to build what you desired. saved nicely irregardless.
It's the video, I seem to have had one or two white balance issues recently. I tried to fix it as best I could with Color Director, so it's much better than it was, but still not perfect. The paint is fine, it hasn't shifted at all.