The color balance is slightly off in this photo (as was the case with many color photos of the day) so be careful with first impressions.
To get a better idea of the actual RLM colors used, take into consideration that this Me262 was first a KG51 unit that was taken over by JV44. With that in mind, compare late-war KG51 RLM schemes and then compare to late-war JV44 schemes. Another aid, would be the known coloring of the jeep and the GI's clothing.
I might mention also, that this: "I will also spray an irregular pattern of "chessboard" mottles over the wings much like what can be seen on the fuselage sides" is not correct, as the "chessboard" pattern is actually the panel joints of the fuselage.