OK Andrew let me be the spoiler here. You were doing great until you got to the picture of the undercarriage. If you blow the picture up to 400% there is a speck of dirt next to the exhaust pipe just before it goes into the muffler, I saw it its there.
In all seriousness, great pics, there something about looking at the Crossfire at that angle that really sets it off.
I thought my undercarriage was clean...whew!

Pat