Are they sure about the provenance of that white horizontal mark across the fin flash? Pictures of the Sopwith Camel from which it has clearly been derived seem to indicate that it was a temporary marking to cover up an incorrect (?) serial no. on the port side of the rudder, with the correct serial hand-painted on the fin. The starboard side shows the usual markings, with the serial no. superimposed on the rudder markings - see
http://img.wp.scn.ru/camms/ar/117/pics/9_15.jpg
Pontius was probably around at the time, so will doubtless remember?
I think that it would look better without that white mark - and that the red, white and blue stripes on the fin and rudder should be of equal sizes.
Also the engine nacelles should be natural metal to the wing leading edge, as per the Camel. The orange colouring is presumably to commemorate the natural wood of the Camel and looks a bit out of place.
Who wants to watch a King Air display? To be honest,
anything displayed by an RAF crew will be worth watching!