Airframes
Benevolens Magister
Nice work on the guns, and the flash suppressor looks fine to me.
Regarding the spinner back plate, on closer inspection, if that is another colour, and not just dust and dirt from the hop field (or paint abrasion from impact), then I think it's more likely to be overspray from the upper-surface camouflage, especially if this particular aircraft was originally in the earlier RLM 70/71 upper colours. If that's the case, then it probably is RLM 02, the demarcation between that and the RLM 70 matching the line of the upper surface colours.
Regarding the spinner back plate, on closer inspection, if that is another colour, and not just dust and dirt from the hop field (or paint abrasion from impact), then I think it's more likely to be overspray from the upper-surface camouflage, especially if this particular aircraft was originally in the earlier RLM 70/71 upper colours. If that's the case, then it probably is RLM 02, the demarcation between that and the RLM 70 matching the line of the upper surface colours.