I love the fact that he has a restored Emil (a flightworthy one, with a DB engine no less!), but he could have completed the markings. There's no markings in front of the fuselage cross. If I recall there should be a yellow 1 for that plane, and the colors might be a tad off. It needs a yellow nose and rudder, as well.
That is, of course, going by the squad badge on the tail.