with your photo of Mr. Campbell you show a very interesting piece of history! Is there any closer info, whether this shows a Tiger II or a Jagdtiger and what date of production it could be? Are there some more? It shows P 1 rotbraun (RAL 8012) under P 7028 dunkelgelb (RAL 7028 - not 7028 Ausgabe 1944!) and another primer (could be Zinkoxyd or something like that). It is known, that Henschel sprayed the layer of P 7028 dunkelgelb after assembly and the final test drive, so that should be no question.
By the way, I am pretty sure the photo of 222 is colorized.